Home / 862,694.96-1,190,500.28-500,109.49

Finding the Fourth Proportional to 862,694.96, 1,190,500.28 and 500,109.49

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Solution

The fourth proportional to 862,694.96, 1,190,500.28 and 500,109.49 is: 690,140.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,694.96 : 1,190,500.28 = 500,109.49 : x
  2. Step 2: Convert to fraction form
    862,694.96/1,190,500.28 = 500,109.49/x
  3. Step 3: Cross multiply
    862,694.96x = 1,190,500.28 × 500,109.49
  4. Step 4: Simplify right side
    862,694.96x = 595,380,491,551.76
  5. Step 5: Solve for x
    x = 595,380,491,551.76/862,694.96
  6. Step 6: Final answer
    x = 690,140.23

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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.