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Finding the Fourth Proportional to 527,299.36, 727,672.88 and 285,581.93

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Solution

The fourth proportional to 527,299.36, 727,672.88 and 285,581.93 is: 394,102.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,299.36 : 727,672.88 = 285,581.93 : x
  2. Step 2: Convert to fraction form
    527,299.36/727,672.88 = 285,581.93/x
  3. Step 3: Cross multiply
    527,299.36x = 727,672.88 × 285,581.93
  4. Step 4: Simplify right side
    527,299.36x = 207,810,222,554.65
  5. Step 5: Solve for x
    x = 207,810,222,554.65/527,299.36
  6. Step 6: Final answer
    x = 394,102.93

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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.