Home / 499,335.18-748,805.79-215,047.05

Finding the Fourth Proportional to 499,335.18, 748,805.79 and 215,047.05

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Solution

The fourth proportional to 499,335.18, 748,805.79 and 215,047.05 is: 322,485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,335.18 : 748,805.79 = 215,047.05 : x
  2. Step 2: Convert to fraction form
    499,335.18/748,805.79 = 215,047.05/x
  3. Step 3: Cross multiply
    499,335.18x = 748,805.79 × 215,047.05
  4. Step 4: Simplify right side
    499,335.18x = 161,028,476,162.42
  5. Step 5: Solve for x
    x = 161,028,476,162.42/499,335.18
  6. Step 6: Final answer
    x = 322,485.74

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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.