Home / 1,028,005.70-1,542,008.55-667,199.30

Finding the Fourth Proportional to 1,028,005.70, 1,542,008.55 and 667,199.30

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Solution

The fourth proportional to 1,028,005.70, 1,542,008.55 and 667,199.30 is: 1,000,798.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,005.70 : 1,542,008.55 = 667,199.30 : x
  2. Step 2: Convert to fraction form
    1,028,005.70/1,542,008.55 = 667,199.30/x
  3. Step 3: Cross multiply
    1,028,005.70x = 1,542,008.55 × 667,199.30
  4. Step 4: Simplify right side
    1,028,005.70x = 1,028,827,025,154.02
  5. Step 5: Solve for x
    x = 1,028,827,025,154.02/1,028,005.70
  6. Step 6: Final answer
    x = 1,000,798.95

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Double scale
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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.