Home / 814,280.12-1,221,504.10-281,800.28

Finding the Fourth Proportional to 814,280.12, 1,221,504.10 and 281,800.28

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Solution

The fourth proportional to 814,280.12, 1,221,504.10 and 281,800.28 is: 422,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,280.12 : 1,221,504.10 = 281,800.28 : x
  2. Step 2: Convert to fraction form
    814,280.12/1,221,504.10 = 281,800.28/x
  3. Step 3: Cross multiply
    814,280.12x = 1,221,504.10 × 281,800.28
  4. Step 4: Simplify right side
    814,280.12x = 344,220,197,401.15
  5. Step 5: Solve for x
    x = 344,220,197,401.15/814,280.12
  6. Step 6: Final answer
    x = 422,729.46

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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.