Home / 1,480.19-2,219.68-555.27

Finding the Fourth Proportional to 1,480.19, 2,219.68 and 555.27

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Solution

The fourth proportional to 1,480.19, 2,219.68 and 555.27 is: 832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.19 : 2,219.68 = 555.27 : x
  2. Step 2: Convert to fraction form
    1,480.19/2,219.68 = 555.27/x
  3. Step 3: Cross multiply
    1,480.19x = 2,219.68 × 555.27
  4. Step 4: Simplify right side
    1,480.19x = 1,232,521.71
  5. Step 5: Solve for x
    x = 1,232,521.71/1,480.19
  6. Step 6: Final answer
    x = 832.68

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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.