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Finding the Fourth Proportional to 868,000.64, 1,300,760.24 and 488,124

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Solution

The fourth proportional to 868,000.64, 1,300,760.24 and 488,124 is: 731,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,000.64 : 1,300,760.24 = 488,124 : x
  2. Step 2: Convert to fraction form
    868,000.64/1,300,760.24 = 488,124/x
  3. Step 3: Cross multiply
    868,000.64x = 1,300,760.24 × 488,124
  4. Step 4: Simplify right side
    868,000.64x = 634,932,288,949.14
  5. Step 5: Solve for x
    x = 634,932,288,949.14/868,000.64
  6. Step 6: Final answer
    x = 731,488.28

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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.