Home / 1,135,542.38-1,702,472.78-686,158.02

Finding the Fourth Proportional to 1,135,542.38, 1,702,472.78 and 686,158.02

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Solution

The fourth proportional to 1,135,542.38, 1,702,472.78 and 686,158.02 is: 1,028,728.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135,542.38 : 1,702,472.78 = 686,158.02 : x
  2. Step 2: Convert to fraction form
    1,135,542.38/1,702,472.78 = 686,158.02/x
  3. Step 3: Cross multiply
    1,135,542.38x = 1,702,472.78 × 686,158.02
  4. Step 4: Simplify right side
    1,135,542.38x = 1,168,165,353,544.09
  5. Step 5: Solve for x
    x = 1,168,165,353,544.09/1,135,542.38
  6. Step 6: Final answer
    x = 1,028,728.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.