Home / 727,712.60-1,091,568.90-254,445.80

Finding the Fourth Proportional to 727,712.60, 1,091,568.90 and 254,445.80

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Solution

The fourth proportional to 727,712.60, 1,091,568.90 and 254,445.80 is: 381,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,712.60 : 1,091,568.90 = 254,445.80 : x
  2. Step 2: Convert to fraction form
    727,712.60/1,091,568.90 = 254,445.80/x
  3. Step 3: Cross multiply
    727,712.60x = 1,091,568.90 × 254,445.80
  4. Step 4: Simplify right side
    727,712.60x = 277,745,122,015.62
  5. Step 5: Solve for x
    x = 277,745,122,015.62/727,712.60
  6. Step 6: Final answer
    x = 381,668.70

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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.