Home / 726,122.20-1,090,220.10-411,194.20

Finding the Fourth Proportional to 726,122.20, 1,090,220.10 and 411,194.20

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Solution

The fourth proportional to 726,122.20, 1,090,220.10 and 411,194.20 is: 617,378.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,122.20 : 1,090,220.10 = 411,194.20 : x
  2. Step 2: Convert to fraction form
    726,122.20/1,090,220.10 = 411,194.20/x
  3. Step 3: Cross multiply
    726,122.20x = 1,090,220.10 × 411,194.20
  4. Step 4: Simplify right side
    726,122.20x = 448,292,181,843.42
  5. Step 5: Solve for x
    x = 448,292,181,843.42/726,122.20
  6. Step 6: Final answer
    x = 617,378.43

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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.