Home / 2,672,092.70-4,008,139.05-778,895.90

Finding the Fourth Proportional to 2,672,092.70, 4,008,139.05 and 778,895.90

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Solution

The fourth proportional to 2,672,092.70, 4,008,139.05 and 778,895.90 is: 1,168,343.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,092.70 : 4,008,139.05 = 778,895.90 : x
  2. Step 2: Convert to fraction form
    2,672,092.70/4,008,139.05 = 778,895.90/x
  3. Step 3: Cross multiply
    2,672,092.70x = 4,008,139.05 × 778,895.90
  4. Step 4: Simplify right side
    2,672,092.70x = 3,121,923,072,674.90
  5. Step 5: Solve for x
    x = 3,121,923,072,674.90/2,672,092.70
  6. Step 6: Final answer
    x = 1,168,343.85

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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.