Home / 780,405.25-1,170,719.27-240,706.95

Finding the Fourth Proportional to 780,405.25, 1,170,719.27 and 240,706.95

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Solution

The fourth proportional to 780,405.25, 1,170,719.27 and 240,706.95 is: 361,094.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,405.25 : 1,170,719.27 = 240,706.95 : x
  2. Step 2: Convert to fraction form
    780,405.25/1,170,719.27 = 240,706.95/x
  3. Step 3: Cross multiply
    780,405.25x = 1,170,719.27 × 240,706.95
  4. Step 4: Simplify right side
    780,405.25x = 281,800,264,787.93
  5. Step 5: Solve for x
    x = 281,800,264,787.93/780,405.25
  6. Step 6: Final answer
    x = 361,094.78

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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.