Home / 763,451.40-1,145,306.70-230,968.20

Finding the Fourth Proportional to 763,451.40, 1,145,306.70 and 230,968.20

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Solution

The fourth proportional to 763,451.40, 1,145,306.70 and 230,968.20 is: 346,491.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,451.40 : 1,145,306.70 = 230,968.20 : x
  2. Step 2: Convert to fraction form
    763,451.40/1,145,306.70 = 230,968.20/x
  3. Step 3: Cross multiply
    763,451.40x = 1,145,306.70 × 230,968.20
  4. Step 4: Simplify right side
    763,451.40x = 264,529,426,946.94
  5. Step 5: Solve for x
    x = 264,529,426,946.94/763,451.40
  6. Step 6: Final answer
    x = 346,491.51

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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.