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Finding the Fourth Proportional to 716,006.12, 987,842.52 and 443,976.12

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Solution

The fourth proportional to 716,006.12, 987,842.52 and 443,976.12 is: 612,534.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,006.12 : 987,842.52 = 443,976.12 : x
  2. Step 2: Convert to fraction form
    716,006.12/987,842.52 = 443,976.12/x
  3. Step 3: Cross multiply
    716,006.12x = 987,842.52 × 443,976.12
  4. Step 4: Simplify right side
    716,006.12x = 438,578,489,200.62
  5. Step 5: Solve for x
    x = 438,578,489,200.62/716,006.12
  6. Step 6: Final answer
    x = 612,534.56

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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.