Home / 861,972.92-1,189,522.62-499,606.97

Finding the Fourth Proportional to 861,972.92, 1,189,522.62 and 499,606.97

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Solution

The fourth proportional to 861,972.92, 1,189,522.62 and 499,606.97 is: 689,457.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,972.92 : 1,189,522.62 = 499,606.97 : x
  2. Step 2: Convert to fraction form
    861,972.92/1,189,522.62 = 499,606.97/x
  3. Step 3: Cross multiply
    861,972.92x = 1,189,522.62 × 499,606.97
  4. Step 4: Simplify right side
    861,972.92x = 594,293,787,382.19
  5. Step 5: Solve for x
    x = 594,293,787,382.19/861,972.92
  6. Step 6: Final answer
    x = 689,457.61

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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.