Home / 741,086.40-1,111,921.20-291,730.80

Finding the Fourth Proportional to 741,086.40, 1,111,921.20 and 291,730.80

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Solution

The fourth proportional to 741,086.40, 1,111,921.20 and 291,730.80 is: 437,710.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,086.40 : 1,111,921.20 = 291,730.80 : x
  2. Step 2: Convert to fraction form
    741,086.40/1,111,921.20 = 291,730.80/x
  3. Step 3: Cross multiply
    741,086.40x = 1,111,921.20 × 291,730.80
  4. Step 4: Simplify right side
    741,086.40x = 324,381,661,212.96
  5. Step 5: Solve for x
    x = 324,381,661,212.96/741,086.40
  6. Step 6: Final answer
    x = 437,710.99

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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.