Home / 2,776,505.20-4,164,757.80-781,961.20

Finding the Fourth Proportional to 2,776,505.20, 4,164,757.80 and 781,961.20

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Solution

The fourth proportional to 2,776,505.20, 4,164,757.80 and 781,961.20 is: 1,172,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776,505.20 : 4,164,757.80 = 781,961.20 : x
  2. Step 2: Convert to fraction form
    2,776,505.20/4,164,757.80 = 781,961.20/x
  3. Step 3: Cross multiply
    2,776,505.20x = 4,164,757.80 × 781,961.20
  4. Step 4: Simplify right side
    2,776,505.20x = 3,256,679,006,997.36
  5. Step 5: Solve for x
    x = 3,256,679,006,997.36/2,776,505.20
  6. Step 6: Final answer
    x = 1,172,941.80

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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.