Home / 1,480.35-2,220.78-493.23

Finding the Fourth Proportional to 1,480.35, 2,220.78 and 493.23

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Solution

The fourth proportional to 1,480.35, 2,220.78 and 493.23 is: 739.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.35 : 2,220.78 = 493.23 : x
  2. Step 2: Convert to fraction form
    1,480.35/2,220.78 = 493.23/x
  3. Step 3: Cross multiply
    1,480.35x = 2,220.78 × 493.23
  4. Step 4: Simplify right side
    1,480.35x = 1,095,355.32
  5. Step 5: Solve for x
    x = 1,095,355.32/1,480.35
  6. Step 6: Final answer
    x = 739.93

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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.