Home / 911,255.60-1,366,883.40-486,102.80

Finding the Fourth Proportional to 911,255.60, 1,366,883.40 and 486,102.80

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Solution

The fourth proportional to 911,255.60, 1,366,883.40 and 486,102.80 is: 729,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,255.60 : 1,366,883.40 = 486,102.80 : x
  2. Step 2: Convert to fraction form
    911,255.60/1,366,883.40 = 486,102.80/x
  3. Step 3: Cross multiply
    911,255.60x = 1,366,883.40 × 486,102.80
  4. Step 4: Simplify right side
    911,255.60x = 664,445,848,013.52
  5. Step 5: Solve for x
    x = 664,445,848,013.52/911,255.60
  6. Step 6: Final answer
    x = 729,154.20

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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.