Home / 667,488.80-1,001,342.40-218,079.20

Finding the Fourth Proportional to 667,488.80, 1,001,342.40 and 218,079.20

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Solution

The fourth proportional to 667,488.80, 1,001,342.40 and 218,079.20 is: 327,154.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,488.80 : 1,001,342.40 = 218,079.20 : x
  2. Step 2: Convert to fraction form
    667,488.80/1,001,342.40 = 218,079.20/x
  3. Step 3: Cross multiply
    667,488.80x = 1,001,342.40 × 218,079.20
  4. Step 4: Simplify right side
    667,488.80x = 218,371,949,518.08
  5. Step 5: Solve for x
    x = 218,371,949,518.08/667,488.80
  6. Step 6: Final answer
    x = 327,154.48

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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.