Home / 781,501.68-1,078,234.20-437,301.90

Finding the Fourth Proportional to 781,501.68, 1,078,234.20 and 437,301.90

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Solution

The fourth proportional to 781,501.68, 1,078,234.20 and 437,301.90 is: 603,343.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,501.68 : 1,078,234.20 = 437,301.90 : x
  2. Step 2: Convert to fraction form
    781,501.68/1,078,234.20 = 437,301.90/x
  3. Step 3: Cross multiply
    781,501.68x = 1,078,234.20 × 437,301.90
  4. Step 4: Simplify right side
    781,501.68x = 471,513,864,304.98
  5. Step 5: Solve for x
    x = 471,513,864,304.98/781,501.68
  6. Step 6: Final answer
    x = 603,343.38

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.