Home / 1,470.25-2,205.30-545.44

Finding the Fourth Proportional to 1,470.25, 2,205.30 and 545.44

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Solution

The fourth proportional to 1,470.25, 2,205.30 and 545.44 is: 818.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.25 : 2,205.30 = 545.44 : x
  2. Step 2: Convert to fraction form
    1,470.25/2,205.30 = 545.44/x
  3. Step 3: Cross multiply
    1,470.25x = 2,205.30 × 545.44
  4. Step 4: Simplify right side
    1,470.25x = 1,202,858.83
  5. Step 5: Solve for x
    x = 1,202,858.83/1,470.25
  6. Step 6: Final answer
    x = 818.13

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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.