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Finding the Fourth Proportional to 503,250.60, 694,504.94 and 288,432.12

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Solution

The fourth proportional to 503,250.60, 694,504.94 and 288,432.12 is: 398,047.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,250.60 : 694,504.94 = 288,432.12 : x
  2. Step 2: Convert to fraction form
    503,250.60/694,504.94 = 288,432.12/x
  3. Step 3: Cross multiply
    503,250.60x = 694,504.94 × 288,432.12
  4. Step 4: Simplify right side
    503,250.60x = 200,317,533,356.91
  5. Step 5: Solve for x
    x = 200,317,533,356.91/503,250.60
  6. Step 6: Final answer
    x = 398,047.28

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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.