Home / 527,355.42-727,748.70-285,637.38

Finding the Fourth Proportional to 527,355.42, 727,748.70 and 285,637.38

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Solution

The fourth proportional to 527,355.42, 727,748.70 and 285,637.38 is: 394,178.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,355.42 : 727,748.70 = 285,637.38 : x
  2. Step 2: Convert to fraction form
    527,355.42/727,748.70 = 285,637.38/x
  3. Step 3: Cross multiply
    527,355.42x = 727,748.70 × 285,637.38
  4. Step 4: Simplify right side
    527,355.42x = 207,872,231,966.41
  5. Step 5: Solve for x
    x = 207,872,231,966.41/527,355.42
  6. Step 6: Final answer
    x = 394,178.62

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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.