Home / 1,470.78-2,205.54-546.18

Finding the Fourth Proportional to 1,470.78, 2,205.54 and 546.18

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Solution

The fourth proportional to 1,470.78, 2,205.54 and 546.18 is: 819.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.78 : 2,205.54 = 546.18 : x
  2. Step 2: Convert to fraction form
    1,470.78/2,205.54 = 546.18/x
  3. Step 3: Cross multiply
    1,470.78x = 2,205.54 × 546.18
  4. Step 4: Simplify right side
    1,470.78x = 1,204,621.84
  5. Step 5: Solve for x
    x = 1,204,621.84/1,470.78
  6. Step 6: Final answer
    x = 819.04

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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.