Home / 1,253,999.70-1,880,999.55-756,335.70

Finding the Fourth Proportional to 1,253,999.70, 1,880,999.55 and 756,335.70

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Solution

The fourth proportional to 1,253,999.70, 1,880,999.55 and 756,335.70 is: 1,134,503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,999.70 : 1,880,999.55 = 756,335.70 : x
  2. Step 2: Convert to fraction form
    1,253,999.70/1,880,999.55 = 756,335.70/x
  3. Step 3: Cross multiply
    1,253,999.70x = 1,880,999.55 × 756,335.70
  4. Step 4: Simplify right side
    1,253,999.70x = 1,422,667,111,348.94
  5. Step 5: Solve for x
    x = 1,422,667,111,348.94/1,253,999.70
  6. Step 6: Final answer
    x = 1,134,503.55

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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.