Home / 492,868.40-680,162.46-272,112.80

Finding the Fourth Proportional to 492,868.40, 680,162.46 and 272,112.80

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Solution

The fourth proportional to 492,868.40, 680,162.46 and 272,112.80 is: 375,517.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,868.40 : 680,162.46 = 272,112.80 : x
  2. Step 2: Convert to fraction form
    492,868.40/680,162.46 = 272,112.80/x
  3. Step 3: Cross multiply
    492,868.40x = 680,162.46 × 272,112.80
  4. Step 4: Simplify right side
    492,868.40x = 185,080,911,445.49
  5. Step 5: Solve for x
    x = 185,080,911,445.49/492,868.40
  6. Step 6: Final answer
    x = 375,517.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.