Home / 1,008,119.85-1,512,179.78-672,196.65

Finding the Fourth Proportional to 1,008,119.85, 1,512,179.78 and 672,196.65

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Solution

The fourth proportional to 1,008,119.85, 1,512,179.78 and 672,196.65 is: 1,008,294.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,119.85 : 1,512,179.78 = 672,196.65 : x
  2. Step 2: Convert to fraction form
    1,008,119.85/1,512,179.78 = 672,196.65/x
  3. Step 3: Cross multiply
    1,008,119.85x = 1,512,179.78 × 672,196.65
  4. Step 4: Simplify right side
    1,008,119.85x = 1,016,482,178,952.75
  5. Step 5: Solve for x
    x = 1,016,482,178,952.75/1,008,119.85
  6. Step 6: Final answer
    x = 1,008,294.98

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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.