Home / 787,132.80-1,180,407.60-254,671.20

Finding the Fourth Proportional to 787,132.80, 1,180,407.60 and 254,671.20

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Solution

The fourth proportional to 787,132.80, 1,180,407.60 and 254,671.20 is: 381,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,132.80 : 1,180,407.60 = 254,671.20 : x
  2. Step 2: Convert to fraction form
    787,132.80/1,180,407.60 = 254,671.20/x
  3. Step 3: Cross multiply
    787,132.80x = 1,180,407.60 × 254,671.20
  4. Step 4: Simplify right side
    787,132.80x = 300,615,819,981.12
  5. Step 5: Solve for x
    x = 300,615,819,981.12/787,132.80
  6. Step 6: Final answer
    x = 381,912.45

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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.