Home / 869,475.20-1,304,221.80-238,388.96

Finding the Fourth Proportional to 869,475.20, 1,304,221.80 and 238,388.96

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Solution

The fourth proportional to 869,475.20, 1,304,221.80 and 238,388.96 is: 357,585.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,475.20 : 1,304,221.80 = 238,388.96 : x
  2. Step 2: Convert to fraction form
    869,475.20/1,304,221.80 = 238,388.96/x
  3. Step 3: Cross multiply
    869,475.20x = 1,304,221.80 × 238,388.96
  4. Step 4: Simplify right side
    869,475.20x = 310,912,078,511.33
  5. Step 5: Solve for x
    x = 310,912,078,511.33/869,475.20
  6. Step 6: Final answer
    x = 357,585.91

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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.