Home / 810,002.70-1,215,004.05-248,964.30

Finding the Fourth Proportional to 810,002.70, 1,215,004.05 and 248,964.30

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Solution

The fourth proportional to 810,002.70, 1,215,004.05 and 248,964.30 is: 373,446.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,002.70 : 1,215,004.05 = 248,964.30 : x
  2. Step 2: Convert to fraction form
    810,002.70/1,215,004.05 = 248,964.30/x
  3. Step 3: Cross multiply
    810,002.70x = 1,215,004.05 × 248,964.30
  4. Step 4: Simplify right side
    810,002.70x = 302,492,632,805.42
  5. Step 5: Solve for x
    x = 302,492,632,805.42/810,002.70
  6. Step 6: Final answer
    x = 373,446.45

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Double scale
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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.