Home / 381,720.30-572,580.45-240,002.70

Finding the Fourth Proportional to 381,720.30, 572,580.45 and 240,002.70

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Solution

The fourth proportional to 381,720.30, 572,580.45 and 240,002.70 is: 360,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,720.30 : 572,580.45 = 240,002.70 : x
  2. Step 2: Convert to fraction form
    381,720.30/572,580.45 = 240,002.70/x
  3. Step 3: Cross multiply
    381,720.30x = 572,580.45 × 240,002.70
  4. Step 4: Simplify right side
    381,720.30x = 137,420,853,967.22
  5. Step 5: Solve for x
    x = 137,420,853,967.22/381,720.30
  6. Step 6: Final answer
    x = 360,004.05

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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.