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Finding the Fourth Proportional to 663,709.76, 995,802.24 and 284,471.36

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Solution

The fourth proportional to 663,709.76, 995,802.24 and 284,471.36 is: 426,808.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,709.76 : 995,802.24 = 284,471.36 : x
  2. Step 2: Convert to fraction form
    663,709.76/995,802.24 = 284,471.36/x
  3. Step 3: Cross multiply
    663,709.76x = 995,802.24 × 284,471.36
  4. Step 4: Simplify right side
    663,709.76x = 283,277,217,503.85
  5. Step 5: Solve for x
    x = 283,277,217,503.85/663,709.76
  6. Step 6: Final answer
    x = 426,808.88

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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.