Home / 814,258.45-1,220,142.15-435,233.12

Finding the Fourth Proportional to 814,258.45, 1,220,142.15 and 435,233.12

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Solution

The fourth proportional to 814,258.45, 1,220,142.15 and 435,233.12 is: 652,183.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,258.45 : 1,220,142.15 = 435,233.12 : x
  2. Step 2: Convert to fraction form
    814,258.45/1,220,142.15 = 435,233.12/x
  3. Step 3: Cross multiply
    814,258.45x = 1,220,142.15 × 435,233.12
  4. Step 4: Simplify right side
    814,258.45x = 531,046,272,611.84
  5. Step 5: Solve for x
    x = 531,046,272,611.84/814,258.45
  6. Step 6: Final answer
    x = 652,183.93

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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.