Home / 1,480.17-2,220.60-440.18

Finding the Fourth Proportional to 1,480.17, 2,220.60 and 440.18

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Solution

The fourth proportional to 1,480.17, 2,220.60 and 440.18 is: 660.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.17 : 2,220.60 = 440.18 : x
  2. Step 2: Convert to fraction form
    1,480.17/2,220.60 = 440.18/x
  3. Step 3: Cross multiply
    1,480.17x = 2,220.60 × 440.18
  4. Step 4: Simplify right side
    1,480.17x = 977,450.40
  5. Step 5: Solve for x
    x = 977,450.40/1,480.17
  6. Step 6: Final answer
    x = 660.37

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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.