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Finding the Fourth Proportional to 478,562.28, 660,445.44 and 263,702.31

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Solution

The fourth proportional to 478,562.28, 660,445.44 and 263,702.31 is: 363,925.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,562.28 : 660,445.44 = 263,702.31 : x
  2. Step 2: Convert to fraction form
    478,562.28/660,445.44 = 263,702.31/x
  3. Step 3: Cross multiply
    478,562.28x = 660,445.44 × 263,702.31
  4. Step 4: Simplify right side
    478,562.28x = 174,160,988,156.97
  5. Step 5: Solve for x
    x = 174,160,988,156.97/478,562.28
  6. Step 6: Final answer
    x = 363,925.44

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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.