Home / 1,480.13-2,220.57-555.69

Finding the Fourth Proportional to 1,480.13, 2,220.57 and 555.69

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Solution

The fourth proportional to 1,480.13, 2,220.57 and 555.69 is: 833.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.13 : 2,220.57 = 555.69 : x
  2. Step 2: Convert to fraction form
    1,480.13/2,220.57 = 555.69/x
  3. Step 3: Cross multiply
    1,480.13x = 2,220.57 × 555.69
  4. Step 4: Simplify right side
    1,480.13x = 1,233,948.54
  5. Step 5: Solve for x
    x = 1,233,948.54/1,480.13
  6. Step 6: Final answer
    x = 833.68

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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.