Home / 2,672,079.70-4,008,119.55-778,882.90

Finding the Fourth Proportional to 2,672,079.70, 4,008,119.55 and 778,882.90

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Solution

The fourth proportional to 2,672,079.70, 4,008,119.55 and 778,882.90 is: 1,168,324.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,079.70 : 4,008,119.55 = 778,882.90 : x
  2. Step 2: Convert to fraction form
    2,672,079.70/4,008,119.55 = 778,882.90/x
  3. Step 3: Cross multiply
    2,672,079.70x = 4,008,119.55 × 778,882.90
  4. Step 4: Simplify right side
    2,672,079.70x = 3,121,855,778,650.70
  5. Step 5: Solve for x
    x = 3,121,855,778,650.70/2,672,079.70
  6. Step 6: Final answer
    x = 1,168,324.35

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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.