Home / 437,719.20-656,578.80-382,423.20

Finding the Fourth Proportional to 437,719.20, 656,578.80 and 382,423.20

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Solution

The fourth proportional to 437,719.20, 656,578.80 and 382,423.20 is: 573,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,719.20 : 656,578.80 = 382,423.20 : x
  2. Step 2: Convert to fraction form
    437,719.20/656,578.80 = 382,423.20/x
  3. Step 3: Cross multiply
    437,719.20x = 656,578.80 × 382,423.20
  4. Step 4: Simplify right side
    437,719.20x = 251,090,965,748.16
  5. Step 5: Solve for x
    x = 251,090,965,748.16/437,719.20
  6. Step 6: Final answer
    x = 573,634.80

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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.