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Finding the Fourth Proportional to 527,560.96, 728,032.80 and 285,849.92

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Solution

The fourth proportional to 527,560.96, 728,032.80 and 285,849.92 is: 394,472.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,560.96 : 728,032.80 = 285,849.92 : x
  2. Step 2: Convert to fraction form
    527,560.96/728,032.80 = 285,849.92/x
  3. Step 3: Cross multiply
    527,560.96x = 728,032.80 × 285,849.92
  4. Step 4: Simplify right side
    527,560.96x = 208,108,117,637.38
  5. Step 5: Solve for x
    x = 208,108,117,637.38/527,560.96
  6. Step 6: Final answer
    x = 394,472.17

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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.