Home / 781,350.40-1,168,915.20-677,324.80

Finding the Fourth Proportional to 781,350.40, 1,168,915.20 and 677,324.80

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Solution

The fourth proportional to 781,350.40, 1,168,915.20 and 677,324.80 is: 1,013,290.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,350.40 : 1,168,915.20 = 677,324.80 : x
  2. Step 2: Convert to fraction form
    781,350.40/1,168,915.20 = 677,324.80/x
  3. Step 3: Cross multiply
    781,350.40x = 1,168,915.20 × 677,324.80
  4. Step 4: Simplify right side
    781,350.40x = 791,735,254,056.96
  5. Step 5: Solve for x
    x = 791,735,254,056.96/781,350.40
  6. Step 6: Final answer
    x = 1,013,290.91

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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.