Home / 437,530.20-656,295.30-408,005.70

Finding the Fourth Proportional to 437,530.20, 656,295.30 and 408,005.70

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Solution

The fourth proportional to 437,530.20, 656,295.30 and 408,005.70 is: 612,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,530.20 : 656,295.30 = 408,005.70 : x
  2. Step 2: Convert to fraction form
    437,530.20/656,295.30 = 408,005.70/x
  3. Step 3: Cross multiply
    437,530.20x = 656,295.30 × 408,005.70
  4. Step 4: Simplify right side
    437,530.20x = 267,772,223,283.21
  5. Step 5: Solve for x
    x = 267,772,223,283.21/437,530.20
  6. Step 6: Final answer
    x = 612,008.55

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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.