Home / 1,028,000.70-1,542,001.05-667,194.30

Finding the Fourth Proportional to 1,028,000.70, 1,542,001.05 and 667,194.30

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Solution

The fourth proportional to 1,028,000.70, 1,542,001.05 and 667,194.30 is: 1,000,791.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,000.70 : 1,542,001.05 = 667,194.30 : x
  2. Step 2: Convert to fraction form
    1,028,000.70/1,542,001.05 = 667,194.30/x
  3. Step 3: Cross multiply
    1,028,000.70x = 1,542,001.05 × 667,194.30
  4. Step 4: Simplify right side
    1,028,000.70x = 1,028,814,311,154.02
  5. Step 5: Solve for x
    x = 1,028,814,311,154.02/1,028,000.70
  6. Step 6: Final answer
    x = 1,000,791.45

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Double scale
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Similar ratio
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1.5x scale

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.