Home / 862,160.70-1,189,780.92-499,794.60

Finding the Fourth Proportional to 862,160.70, 1,189,780.92 and 499,794.60

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Solution

The fourth proportional to 862,160.70, 1,189,780.92 and 499,794.60 is: 689,716.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,160.70 : 1,189,780.92 = 499,794.60 : x
  2. Step 2: Convert to fraction form
    862,160.70/1,189,780.92 = 499,794.60/x
  3. Step 3: Cross multiply
    862,160.70x = 1,189,780.92 × 499,794.60
  4. Step 4: Simplify right side
    862,160.70x = 594,646,078,999.03
  5. Step 5: Solve for x
    x = 594,646,078,999.03/862,160.70
  6. Step 6: Final answer
    x = 689,716.06

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Double scale
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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.