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Finding the Fourth Proportional to 647,753.44, 893,899.64 and 361,267.38

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Solution

The fourth proportional to 647,753.44, 893,899.64 and 361,267.38 is: 498,548.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,753.44 : 893,899.64 = 361,267.38 : x
  2. Step 2: Convert to fraction form
    647,753.44/893,899.64 = 361,267.38/x
  3. Step 3: Cross multiply
    647,753.44x = 893,899.64 × 361,267.38
  4. Step 4: Simplify right side
    647,753.44x = 322,936,780,925.74
  5. Step 5: Solve for x
    x = 322,936,780,925.74/647,753.44
  6. Step 6: Final answer
    x = 498,548.92

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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.