Home / 672,186.40-1,008,279.60-667,520.80

Finding the Fourth Proportional to 672,186.40, 1,008,279.60 and 667,520.80

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Solution

The fourth proportional to 672,186.40, 1,008,279.60 and 667,520.80 is: 1,001,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,186.40 : 1,008,279.60 = 667,520.80 : x
  2. Step 2: Convert to fraction form
    672,186.40/1,008,279.60 = 667,520.80/x
  3. Step 3: Cross multiply
    672,186.40x = 1,008,279.60 × 667,520.80
  4. Step 4: Simplify right side
    672,186.40x = 673,047,605,215.68
  5. Step 5: Solve for x
    x = 673,047,605,215.68/672,186.40
  6. Step 6: Final answer
    x = 1,001,281.20

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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.