Home / 969,882.72-1,338,479.60-540,162.76

Finding the Fourth Proportional to 969,882.72, 1,338,479.60 and 540,162.76

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Solution

The fourth proportional to 969,882.72, 1,338,479.60 and 540,162.76 is: 745,447.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,882.72 : 1,338,479.60 = 540,162.76 : x
  2. Step 2: Convert to fraction form
    969,882.72/1,338,479.60 = 540,162.76/x
  3. Step 3: Cross multiply
    969,882.72x = 1,338,479.60 × 540,162.76
  4. Step 4: Simplify right side
    969,882.72x = 722,996,834,939.70
  5. Step 5: Solve for x
    x = 722,996,834,939.70/969,882.72
  6. Step 6: Final answer
    x = 745,447.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.