Home / 747,531.18-1,031,564.16-407,999.43

Finding the Fourth Proportional to 747,531.18, 1,031,564.16 and 407,999.43

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Solution

The fourth proportional to 747,531.18, 1,031,564.16 and 407,999.43 is: 563,023.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,531.18 : 1,031,564.16 = 407,999.43 : x
  2. Step 2: Convert to fraction form
    747,531.18/1,031,564.16 = 407,999.43/x
  3. Step 3: Cross multiply
    747,531.18x = 1,031,564.16 × 407,999.43
  4. Step 4: Simplify right side
    747,531.18x = 420,877,589,288.43
  5. Step 5: Solve for x
    x = 420,877,589,288.43/747,531.18
  6. Step 6: Final answer
    x = 563,023.46

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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.