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Finding the Fourth Proportional to 550,037.70, 825,542.55 and 325,116.90

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Solution

The fourth proportional to 550,037.70, 825,542.55 and 325,116.90 is: 487,962.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,037.70 : 825,542.55 = 325,116.90 : x
  2. Step 2: Convert to fraction form
    550,037.70/825,542.55 = 325,116.90/x
  3. Step 3: Cross multiply
    550,037.70x = 825,542.55 × 325,116.90
  4. Step 4: Simplify right side
    550,037.70x = 268,397,834,674.10
  5. Step 5: Solve for x
    x = 268,397,834,674.10/550,037.70
  6. Step 6: Final answer
    x = 487,962.62

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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.