Home / 812,691.01-1,219,116.71-280,141.93

Finding the Fourth Proportional to 812,691.01, 1,219,116.71 and 280,141.93

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Solution

The fourth proportional to 812,691.01, 1,219,116.71 and 280,141.93 is: 420,240.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,691.01 : 1,219,116.71 = 280,141.93 : x
  2. Step 2: Convert to fraction form
    812,691.01/1,219,116.71 = 280,141.93/x
  3. Step 3: Cross multiply
    812,691.01x = 1,219,116.71 × 280,141.93
  4. Step 4: Simplify right side
    812,691.01x = 341,525,708,034.65
  5. Step 5: Solve for x
    x = 341,525,708,034.65/812,691.01
  6. Step 6: Final answer
    x = 420,240.54

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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.