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Finding the Fourth Proportional to 528,061.92, 728,764 and 301,702.56

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Solution

The fourth proportional to 528,061.92, 728,764 and 301,702.56 is: 416,371.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,061.92 : 728,764 = 301,702.56 : x
  2. Step 2: Convert to fraction form
    528,061.92/728,764 = 301,702.56/x
  3. Step 3: Cross multiply
    528,061.92x = 728,764 × 301,702.56
  4. Step 4: Simplify right side
    528,061.92x = 219,869,964,435.84
  5. Step 5: Solve for x
    x = 219,869,964,435.84/528,061.92
  6. Step 6: Final answer
    x = 416,371.56

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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.