Home / 880,918.38-1,215,646.97-513,372.11

Finding the Fourth Proportional to 880,918.38, 1,215,646.97 and 513,372.11

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Solution

The fourth proportional to 880,918.38, 1,215,646.97 and 513,372.11 is: 708,441.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,918.38 : 1,215,646.97 = 513,372.11 : x
  2. Step 2: Convert to fraction form
    880,918.38/1,215,646.97 = 513,372.11/x
  3. Step 3: Cross multiply
    880,918.38x = 1,215,646.97 × 513,372.11
  4. Step 4: Simplify right side
    880,918.38x = 624,079,241,358.91
  5. Step 5: Solve for x
    x = 624,079,241,358.91/880,918.38
  6. Step 6: Final answer
    x = 708,441.62

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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.