Home / 1,612,865.80-2,419,590.30-812,132.20

Finding the Fourth Proportional to 1,612,865.80, 2,419,590.30 and 812,132.20

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Solution

The fourth proportional to 1,612,865.80, 2,419,590.30 and 812,132.20 is: 1,218,345.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612,865.80 : 2,419,590.30 = 812,132.20 : x
  2. Step 2: Convert to fraction form
    1,612,865.80/2,419,590.30 = 812,132.20/x
  3. Step 3: Cross multiply
    1,612,865.80x = 2,419,590.30 × 812,132.20
  4. Step 4: Simplify right side
    1,612,865.80x = 1,965,027,193,437.66
  5. Step 5: Solve for x
    x = 1,965,027,193,437.66/1,612,865.80
  6. Step 6: Final answer
    x = 1,218,345.13

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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.