Home / 419,932.71-579,482.18-238,619.48

Finding the Fourth Proportional to 419,932.71, 579,482.18 and 238,619.48

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Solution

The fourth proportional to 419,932.71, 579,482.18 and 238,619.48 is: 329,280.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,932.71 : 579,482.18 = 238,619.48 : x
  2. Step 2: Convert to fraction form
    419,932.71/579,482.18 = 238,619.48/x
  3. Step 3: Cross multiply
    419,932.71x = 579,482.18 × 238,619.48
  4. Step 4: Simplify right side
    419,932.71x = 138,275,733,819.06
  5. Step 5: Solve for x
    x = 138,275,733,819.06/419,932.71
  6. Step 6: Final answer
    x = 329,280.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.