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Finding the Fourth Proportional to 717,493.25, 990,068.85 and 441,806.92

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Solution

The fourth proportional to 717,493.25, 990,068.85 and 441,806.92 is: 609,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,493.25 : 990,068.85 = 441,806.92 : x
  2. Step 2: Convert to fraction form
    717,493.25/990,068.85 = 441,806.92/x
  3. Step 3: Cross multiply
    717,493.25x = 990,068.85 × 441,806.92
  4. Step 4: Simplify right side
    717,493.25x = 437,419,264,256.10
  5. Step 5: Solve for x
    x = 437,419,264,256.10/717,493.25
  6. Step 6: Final answer
    x = 609,649.31

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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.