Home / 437,623.20-656,434.80-280,029.60

Finding the Fourth Proportional to 437,623.20, 656,434.80 and 280,029.60

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Solution

The fourth proportional to 437,623.20, 656,434.80 and 280,029.60 is: 420,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,623.20 : 656,434.80 = 280,029.60 : x
  2. Step 2: Convert to fraction form
    437,623.20/656,434.80 = 280,029.60/x
  3. Step 3: Cross multiply
    437,623.20x = 656,434.80 × 280,029.60
  4. Step 4: Simplify right side
    437,623.20x = 183,821,174,470.08
  5. Step 5: Solve for x
    x = 183,821,174,470.08/437,623.20
  6. Step 6: Final answer
    x = 420,044.40

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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.