Home / 781,380.07-1,177,926.82-729,300.04

Finding the Fourth Proportional to 781,380.07, 1,177,926.82 and 729,300.04

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Solution

The fourth proportional to 781,380.07, 1,177,926.82 and 729,300.04 is: 1,099,416.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,380.07 : 1,177,926.82 = 729,300.04 : x
  2. Step 2: Convert to fraction form
    781,380.07/1,177,926.82 = 729,300.04/x
  3. Step 3: Cross multiply
    781,380.07x = 1,177,926.82 × 729,300.04
  4. Step 4: Simplify right side
    781,380.07x = 859,062,076,277.32
  5. Step 5: Solve for x
    x = 859,062,076,277.32/781,380.07
  6. Step 6: Final answer
    x = 1,099,416.42

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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.