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Finding the Fourth Proportional to 440,878.48, 608,167.56 and 287,699.92

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Solution

The fourth proportional to 440,878.48, 608,167.56 and 287,699.92 is: 396,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,878.48 : 608,167.56 = 287,699.92 : x
  2. Step 2: Convert to fraction form
    440,878.48/608,167.56 = 287,699.92/x
  3. Step 3: Cross multiply
    440,878.48x = 608,167.56 × 287,699.92
  4. Step 4: Simplify right side
    440,878.48x = 174,969,758,358.60
  5. Step 5: Solve for x
    x = 174,969,758,358.60/440,878.48
  6. Step 6: Final answer
    x = 396,866.18

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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.