Home / 1,206,750.45-1,664,839.47-777,279.85

Finding the Fourth Proportional to 1,206,750.45, 1,664,839.47 and 777,279.85

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Solution

The fourth proportional to 1,206,750.45, 1,664,839.47 and 777,279.85 is: 1,072,339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,750.45 : 1,664,839.47 = 777,279.85 : x
  2. Step 2: Convert to fraction form
    1,206,750.45/1,664,839.47 = 777,279.85/x
  3. Step 3: Cross multiply
    1,206,750.45x = 1,664,839.47 × 777,279.85
  4. Step 4: Simplify right side
    1,206,750.45x = 1,294,046,172,268.38
  5. Step 5: Solve for x
    x = 1,294,046,172,268.38/1,206,750.45
  6. Step 6: Final answer
    x = 1,072,339.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.