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Finding the Fourth Proportional to 497,310.40, 745,965.60 and 123,333.40

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Solution

The fourth proportional to 497,310.40, 745,965.60 and 123,333.40 is: 185,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,310.40 : 745,965.60 = 123,333.40 : x
  2. Step 2: Convert to fraction form
    497,310.40/745,965.60 = 123,333.40/x
  3. Step 3: Cross multiply
    497,310.40x = 745,965.60 × 123,333.40
  4. Step 4: Simplify right side
    497,310.40x = 92,002,473,731.04
  5. Step 5: Solve for x
    x = 92,002,473,731.04/497,310.40
  6. Step 6: Final answer
    x = 185,000.10

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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.