Home / 413,386.56-620,086.05-143,523.24

Finding the Fourth Proportional to 413,386.56, 620,086.05 and 143,523.24

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Solution

The fourth proportional to 413,386.56, 620,086.05 and 143,523.24 is: 215,287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,386.56 : 620,086.05 = 143,523.24 : x
  2. Step 2: Convert to fraction form
    413,386.56/620,086.05 = 143,523.24/x
  3. Step 3: Cross multiply
    413,386.56x = 620,086.05 × 143,523.24
  4. Step 4: Simplify right side
    413,386.56x = 88,996,758,974.80
  5. Step 5: Solve for x
    x = 88,996,758,974.80/413,386.56
  6. Step 6: Final answer
    x = 215,287.02

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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.