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Finding the Fourth Proportional to 666,773.52, 920,140.35 and 360,843.24

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Solution

The fourth proportional to 666,773.52, 920,140.35 and 360,843.24 is: 497,959.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,773.52 : 920,140.35 = 360,843.24 : x
  2. Step 2: Convert to fraction form
    666,773.52/920,140.35 = 360,843.24/x
  3. Step 3: Cross multiply
    666,773.52x = 920,140.35 × 360,843.24
  4. Step 4: Simplify right side
    666,773.52x = 332,026,425,148.73
  5. Step 5: Solve for x
    x = 332,026,425,148.73/666,773.52
  6. Step 6: Final answer
    x = 497,959.82

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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.