Home / 720,638.20-1,080,957.30-366,344.20

Finding the Fourth Proportional to 720,638.20, 1,080,957.30 and 366,344.20

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Solution

The fourth proportional to 720,638.20, 1,080,957.30 and 366,344.20 is: 549,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,638.20 : 1,080,957.30 = 366,344.20 : x
  2. Step 2: Convert to fraction form
    720,638.20/1,080,957.30 = 366,344.20/x
  3. Step 3: Cross multiply
    720,638.20x = 1,080,957.30 × 366,344.20
  4. Step 4: Simplify right side
    720,638.20x = 396,002,437,302.66
  5. Step 5: Solve for x
    x = 396,002,437,302.66/720,638.20
  6. Step 6: Final answer
    x = 549,516.30

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Double scale
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Similar ratio
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1.5x scale

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.