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Finding the Fourth Proportional to 1,470.74, 2,206.76 and 546.08

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Solution

The fourth proportional to 1,470.74, 2,206.76 and 546.08 is: 819.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.74 : 2,206.76 = 546.08 : x
  2. Step 2: Convert to fraction form
    1,470.74/2,206.76 = 546.08/x
  3. Step 3: Cross multiply
    1,470.74x = 2,206.76 × 546.08
  4. Step 4: Simplify right side
    1,470.74x = 1,205,053.74
  5. Step 5: Solve for x
    x = 1,205,053.74/1,470.74
  6. Step 6: Final answer
    x = 819.35

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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.