Home / 746,838.60-1,120,128.30-273,280.20

Finding the Fourth Proportional to 746,838.60, 1,120,128.30 and 273,280.20

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Solution

The fourth proportional to 746,838.60, 1,120,128.30 and 273,280.20 is: 409,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,838.60 : 1,120,128.30 = 273,280.20 : x
  2. Step 2: Convert to fraction form
    746,838.60/1,120,128.30 = 273,280.20/x
  3. Step 3: Cross multiply
    746,838.60x = 1,120,128.30 × 273,280.20
  4. Step 4: Simplify right side
    746,838.60x = 306,108,885,849.66
  5. Step 5: Solve for x
    x = 306,108,885,849.66/746,838.60
  6. Step 6: Final answer
    x = 409,872.88

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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.