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Finding the Fourth Proportional to 708,356.88, 977,503.98 and 386,060.04

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Solution

The fourth proportional to 708,356.88, 977,503.98 and 386,060.04 is: 532,747.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,356.88 : 977,503.98 = 386,060.04 : x
  2. Step 2: Convert to fraction form
    708,356.88/977,503.98 = 386,060.04/x
  3. Step 3: Cross multiply
    708,356.88x = 977,503.98 × 386,060.04
  4. Step 4: Simplify right side
    708,356.88x = 377,375,225,618.96
  5. Step 5: Solve for x
    x = 377,375,225,618.96/708,356.88
  6. Step 6: Final answer
    x = 532,747.31

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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.