Home / 656,001.20-984,390.60-432,003.80

Finding the Fourth Proportional to 656,001.20, 984,390.60 and 432,003.80

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Solution

The fourth proportional to 656,001.20, 984,390.60 and 432,003.80 is: 648,261.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,001.20 : 984,390.60 = 432,003.80 : x
  2. Step 2: Convert to fraction form
    656,001.20/984,390.60 = 432,003.80/x
  3. Step 3: Cross multiply
    656,001.20x = 984,390.60 × 432,003.80
  4. Step 4: Simplify right side
    656,001.20x = 425,260,479,884.28
  5. Step 5: Solve for x
    x = 425,260,479,884.28/656,001.20
  6. Step 6: Final answer
    x = 648,261.74

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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.