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Finding the Fourth Proportional to 526,732.65, 726,888.71 and 285,019.48

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Solution

The fourth proportional to 526,732.65, 726,888.71 and 285,019.48 is: 393,325.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,732.65 : 726,888.71 = 285,019.48 : x
  2. Step 2: Convert to fraction form
    526,732.65/726,888.71 = 285,019.48/x
  3. Step 3: Cross multiply
    526,732.65x = 726,888.71 × 285,019.48
  4. Step 4: Simplify right side
    526,732.65x = 207,177,437,082.53
  5. Step 5: Solve for x
    x = 207,177,437,082.53/526,732.65
  6. Step 6: Final answer
    x = 393,325.61

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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.