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Finding the Fourth Proportional to 888,003.60, 1,331,130.60 and 438,793.80

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Solution

The fourth proportional to 888,003.60, 1,331,130.60 and 438,793.80 is: 657,758.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,003.60 : 1,331,130.60 = 438,793.80 : x
  2. Step 2: Convert to fraction form
    888,003.60/1,331,130.60 = 438,793.80/x
  3. Step 3: Cross multiply
    888,003.60x = 1,331,130.60 × 438,793.80
  4. Step 4: Simplify right side
    888,003.60x = 584,091,854,270.28
  5. Step 5: Solve for x
    x = 584,091,854,270.28/888,003.60
  6. Step 6: Final answer
    x = 657,758.43

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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.