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Finding the Fourth Proportional to 438,818.60, 658,227.90 and 404,604.20

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Solution

The fourth proportional to 438,818.60, 658,227.90 and 404,604.20 is: 606,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,818.60 : 658,227.90 = 404,604.20 : x
  2. Step 2: Convert to fraction form
    438,818.60/658,227.90 = 404,604.20/x
  3. Step 3: Cross multiply
    438,818.60x = 658,227.90 × 404,604.20
  4. Step 4: Simplify right side
    438,818.60x = 266,321,772,897.18
  5. Step 5: Solve for x
    x = 266,321,772,897.18/438,818.60
  6. Step 6: Final answer
    x = 606,906.30

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1.5x scale

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.