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Finding the Fourth Proportional to 647,807.52, 893,972.04 and 361,327.38

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Solution

The fourth proportional to 647,807.52, 893,972.04 and 361,327.38 is: 498,630.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,807.52 : 893,972.04 = 361,327.38 : x
  2. Step 2: Convert to fraction form
    647,807.52/893,972.04 = 361,327.38/x
  3. Step 3: Cross multiply
    647,807.52x = 893,972.04 × 361,327.38
  4. Step 4: Simplify right side
    647,807.52x = 323,016,575,006.46
  5. Step 5: Solve for x
    x = 323,016,575,006.46/647,807.52
  6. Step 6: Final answer
    x = 498,630.48

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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.