Home / 438,819.30-657,244.80-360,087.30

Finding the Fourth Proportional to 438,819.30, 657,244.80 and 360,087.30

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Solution

The fourth proportional to 438,819.30, 657,244.80 and 360,087.30 is: 539,323.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,819.30 : 657,244.80 = 360,087.30 : x
  2. Step 2: Convert to fraction form
    438,819.30/657,244.80 = 360,087.30/x
  3. Step 3: Cross multiply
    438,819.30x = 657,244.80 × 360,087.30
  4. Step 4: Simplify right side
    438,819.30x = 236,665,505,471.04
  5. Step 5: Solve for x
    x = 236,665,505,471.04/438,819.30
  6. Step 6: Final answer
    x = 539,323.37

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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.