Home / 747,589.12-1,031,674.26-408,057.64

Finding the Fourth Proportional to 747,589.12, 1,031,674.26 and 408,057.64

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Solution

The fourth proportional to 747,589.12, 1,031,674.26 and 408,057.64 is: 563,120.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,589.12 : 1,031,674.26 = 408,057.64 : x
  2. Step 2: Convert to fraction form
    747,589.12/1,031,674.26 = 408,057.64/x
  3. Step 3: Cross multiply
    747,589.12x = 1,031,674.26 × 408,057.64
  4. Step 4: Simplify right side
    747,589.12x = 420,982,563,784.35
  5. Step 5: Solve for x
    x = 420,982,563,784.35/747,589.12
  6. Step 6: Final answer
    x = 563,120.24

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.