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Finding the Fourth Proportional to 700,876.49, 967,209.95 and 378,586.59

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Solution

The fourth proportional to 700,876.49, 967,209.95 and 378,586.59 is: 522,449.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,876.49 : 967,209.95 = 378,586.59 : x
  2. Step 2: Convert to fraction form
    700,876.49/967,209.95 = 378,586.59/x
  3. Step 3: Cross multiply
    700,876.49x = 967,209.95 × 378,586.59
  4. Step 4: Simplify right side
    700,876.49x = 366,172,718,479.78
  5. Step 5: Solve for x
    x = 366,172,718,479.78/700,876.49
  6. Step 6: Final answer
    x = 522,449.71

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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.