Home / 897,945.20-1,239,376.48-516,193.44

Finding the Fourth Proportional to 897,945.20, 1,239,376.48 and 516,193.44

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Solution

The fourth proportional to 897,945.20, 1,239,376.48 and 516,193.44 is: 712,468.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,945.20 : 1,239,376.48 = 516,193.44 : x
  2. Step 2: Convert to fraction form
    897,945.20/1,239,376.48 = 516,193.44/x
  3. Step 3: Cross multiply
    897,945.20x = 1,239,376.48 × 516,193.44
  4. Step 4: Simplify right side
    897,945.20x = 639,758,008,666.29
  5. Step 5: Solve for x
    x = 639,758,008,666.29/897,945.20
  6. Step 6: Final answer
    x = 712,468.88

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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.