Home / 781,299.20-1,177,804.78-729,219.02

Finding the Fourth Proportional to 781,299.20, 1,177,804.78 and 729,219.02

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Solution

The fourth proportional to 781,299.20, 1,177,804.78 and 729,219.02 is: 1,099,294.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,299.20 : 1,177,804.78 = 729,219.02 : x
  2. Step 2: Convert to fraction form
    781,299.20/1,177,804.78 = 729,219.02/x
  3. Step 3: Cross multiply
    781,299.20x = 1,177,804.78 × 729,219.02
  4. Step 4: Simplify right side
    781,299.20x = 858,877,648,544.38
  5. Step 5: Solve for x
    x = 858,877,648,544.38/781,299.20
  6. Step 6: Final answer
    x = 1,099,294.16

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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.