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Finding the Fourth Proportional to 576,769.20, 863,112.60 and 502,702.80

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Solution

The fourth proportional to 576,769.20, 863,112.60 and 502,702.80 is: 752,275.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,769.20 : 863,112.60 = 502,702.80 : x
  2. Step 2: Convert to fraction form
    576,769.20/863,112.60 = 502,702.80/x
  3. Step 3: Cross multiply
    576,769.20x = 863,112.60 × 502,702.80
  4. Step 4: Simplify right side
    576,769.20x = 433,889,120,735.28
  5. Step 5: Solve for x
    x = 433,889,120,735.28/576,769.20
  6. Step 6: Final answer
    x = 752,275.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.