Home / 781,929.42-1,172,990.72-276,386.14

Finding the Fourth Proportional to 781,929.42, 1,172,990.72 and 276,386.14

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Solution

The fourth proportional to 781,929.42, 1,172,990.72 and 276,386.14 is: 414,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,929.42 : 1,172,990.72 = 276,386.14 : x
  2. Step 2: Convert to fraction form
    781,929.42/1,172,990.72 = 276,386.14/x
  3. Step 3: Cross multiply
    781,929.42x = 1,172,990.72 × 276,386.14
  4. Step 4: Simplify right side
    781,929.42x = 324,198,377,959.15
  5. Step 5: Solve for x
    x = 324,198,377,959.15/781,929.42
  6. Step 6: Final answer
    x = 414,613.35

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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.