Home / 1,344,147.80-2,016,221.70-397,434.20

Finding the Fourth Proportional to 1,344,147.80, 2,016,221.70 and 397,434.20

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Solution

The fourth proportional to 1,344,147.80, 2,016,221.70 and 397,434.20 is: 596,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,147.80 : 2,016,221.70 = 397,434.20 : x
  2. Step 2: Convert to fraction form
    1,344,147.80/2,016,221.70 = 397,434.20/x
  3. Step 3: Cross multiply
    1,344,147.80x = 2,016,221.70 × 397,434.20
  4. Step 4: Simplify right side
    1,344,147.80x = 801,315,458,362.14
  5. Step 5: Solve for x
    x = 801,315,458,362.14/1,344,147.80
  6. Step 6: Final answer
    x = 596,151.30

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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.