Home / 508,721.70-763,082.55-243,001.20

Finding the Fourth Proportional to 508,721.70, 763,082.55 and 243,001.20

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Solution

The fourth proportional to 508,721.70, 763,082.55 and 243,001.20 is: 364,501.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,721.70 : 763,082.55 = 243,001.20 : x
  2. Step 2: Convert to fraction form
    508,721.70/763,082.55 = 243,001.20/x
  3. Step 3: Cross multiply
    508,721.70x = 763,082.55 × 243,001.20
  4. Step 4: Simplify right side
    508,721.70x = 185,429,975,349.06
  5. Step 5: Solve for x
    x = 185,429,975,349.06/508,721.70
  6. Step 6: Final answer
    x = 364,501.80

Related Problems

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Half scale
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Double scale
Find fourth proportional to 508,722.70, 763,084.05 and 243,002.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.