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Finding the Fourth Proportional to 527,200.90, 727,535.91 and 285,483.47

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Solution

The fourth proportional to 527,200.90, 727,535.91 and 285,483.47 is: 393,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,200.90 : 727,535.91 = 285,483.47 : x
  2. Step 2: Convert to fraction form
    527,200.90/727,535.91 = 285,483.47/x
  3. Step 3: Cross multiply
    527,200.90x = 727,535.91 × 285,483.47
  4. Step 4: Simplify right side
    527,200.90x = 207,699,472,498.73
  5. Step 5: Solve for x
    x = 207,699,472,498.73/527,200.90
  6. Step 6: Final answer
    x = 393,966.46

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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.