Home / 781,279.21-1,177,774.66-729,199.03

Finding the Fourth Proportional to 781,279.21, 1,177,774.66 and 729,199.03

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Solution

The fourth proportional to 781,279.21, 1,177,774.66 and 729,199.03 is: 1,099,264.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,279.21 : 1,177,774.66 = 729,199.03 : x
  2. Step 2: Convert to fraction form
    781,279.21/1,177,774.66 = 729,199.03/x
  3. Step 3: Cross multiply
    781,279.21x = 1,177,774.66 × 729,199.03
  4. Step 4: Simplify right side
    781,279.21x = 858,832,139,630.58
  5. Step 5: Solve for x
    x = 858,832,139,630.58/781,279.21
  6. Step 6: Final answer
    x = 1,099,264.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.