Home / 726,130.20-1,090,232.10-411,202.20

Finding the Fourth Proportional to 726,130.20, 1,090,232.10 and 411,202.20

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Solution

The fourth proportional to 726,130.20, 1,090,232.10 and 411,202.20 is: 617,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,130.20 : 1,090,232.10 = 411,202.20 : x
  2. Step 2: Convert to fraction form
    726,130.20/1,090,232.10 = 411,202.20/x
  3. Step 3: Cross multiply
    726,130.20x = 1,090,232.10 × 411,202.20
  4. Step 4: Simplify right side
    726,130.20x = 448,305,838,030.62
  5. Step 5: Solve for x
    x = 448,305,838,030.62/726,130.20
  6. Step 6: Final answer
    x = 617,390.43

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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.