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Finding the Fourth Proportional to 498,878.80, 748,504.13 and 299,342.39

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Solution

The fourth proportional to 498,878.80, 748,504.13 and 299,342.39 is: 449,125.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,878.80 : 748,504.13 = 299,342.39 : x
  2. Step 2: Convert to fraction form
    498,878.80/748,504.13 = 299,342.39/x
  3. Step 3: Cross multiply
    498,878.80x = 748,504.13 × 299,342.39
  4. Step 4: Simplify right side
    498,878.80x = 224,059,009,959.84
  5. Step 5: Solve for x
    x = 224,059,009,959.84/498,878.80
  6. Step 6: Final answer
    x = 449,125.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.