Home / 676,876.91-1,015,308.07-277,428.65

Finding the Fourth Proportional to 676,876.91, 1,015,308.07 and 277,428.65

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Solution

The fourth proportional to 676,876.91, 1,015,308.07 and 277,428.65 is: 416,139.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,876.91 : 1,015,308.07 = 277,428.65 : x
  2. Step 2: Convert to fraction form
    676,876.91/1,015,308.07 = 277,428.65/x
  3. Step 3: Cross multiply
    676,876.91x = 1,015,308.07 × 277,428.65
  4. Step 4: Simplify right side
    676,876.91x = 281,675,541,424.09
  5. Step 5: Solve for x
    x = 281,675,541,424.09/676,876.91
  6. Step 6: Final answer
    x = 416,139.98

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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.