Home / 672,220.80-1,007,445.60-493,891.20

Finding the Fourth Proportional to 672,220.80, 1,007,445.60 and 493,891.20

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Solution

The fourth proportional to 672,220.80, 1,007,445.60 and 493,891.20 is: 740,186.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,220.80 : 1,007,445.60 = 493,891.20 : x
  2. Step 2: Convert to fraction form
    672,220.80/1,007,445.60 = 493,891.20/x
  3. Step 3: Cross multiply
    672,220.80x = 1,007,445.60 × 493,891.20
  4. Step 4: Simplify right side
    672,220.80x = 497,568,516,318.72
  5. Step 5: Solve for x
    x = 497,568,516,318.72/672,220.80
  6. Step 6: Final answer
    x = 740,186.14

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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.