Home / 747,301.61-1,031,301.11-407,788.49

Finding the Fourth Proportional to 747,301.61, 1,031,301.11 and 407,788.49

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Solution

The fourth proportional to 747,301.61, 1,031,301.11 and 407,788.49 is: 562,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,301.61 : 1,031,301.11 = 407,788.49 : x
  2. Step 2: Convert to fraction form
    747,301.61/1,031,301.11 = 407,788.49/x
  3. Step 3: Cross multiply
    747,301.61x = 1,031,301.11 × 407,788.49
  4. Step 4: Simplify right side
    747,301.61x = 420,552,720,343.28
  5. Step 5: Solve for x
    x = 420,552,720,343.28/747,301.61
  6. Step 6: Final answer
    x = 562,761.69

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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.