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Finding the Fourth Proportional to 527,011.93, 727,275.65 and 285,294.44

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Solution

The fourth proportional to 527,011.93, 727,275.65 and 285,294.44 is: 393,705.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,011.93 : 727,275.65 = 285,294.44 : x
  2. Step 2: Convert to fraction form
    527,011.93/727,275.65 = 285,294.44/x
  3. Step 3: Cross multiply
    527,011.93x = 727,275.65 × 285,294.44
  4. Step 4: Simplify right side
    527,011.93x = 207,487,699,684.10
  5. Step 5: Solve for x
    x = 207,487,699,684.10/527,011.93
  6. Step 6: Final answer
    x = 393,705.89

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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.