Home / 1,480.25-2,220.12-440.24

Finding the Fourth Proportional to 1,480.25, 2,220.12 and 440.24

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Solution

The fourth proportional to 1,480.25, 2,220.12 and 440.24 is: 660.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.25 : 2,220.12 = 440.24 : x
  2. Step 2: Convert to fraction form
    1,480.25/2,220.12 = 440.24/x
  3. Step 3: Cross multiply
    1,480.25x = 2,220.12 × 440.24
  4. Step 4: Simplify right side
    1,480.25x = 977,385.63
  5. Step 5: Solve for x
    x = 977,385.63/1,480.25
  6. Step 6: Final answer
    x = 660.28

Related Problems

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Half scale
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Double scale
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1.5x scale

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.