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Finding the Fourth Proportional to 800,873.92, 1,105,209.12 and 514,396.48

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Solution

The fourth proportional to 800,873.92, 1,105,209.12 and 514,396.48 is: 709,869.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,873.92 : 1,105,209.12 = 514,396.48 : x
  2. Step 2: Convert to fraction form
    800,873.92/1,105,209.12 = 514,396.48/x
  3. Step 3: Cross multiply
    800,873.92x = 1,105,209.12 × 514,396.48
  4. Step 4: Simplify right side
    800,873.92x = 568,515,680,991.90
  5. Step 5: Solve for x
    x = 568,515,680,991.90/800,873.92
  6. Step 6: Final answer
    x = 709,869.14

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1.5x scale

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.