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Finding the Fourth Proportional to 800,760.97, 1,105,050.10 and 438,184.86

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Solution

The fourth proportional to 800,760.97, 1,105,050.10 and 438,184.86 is: 604,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,760.97 : 1,105,050.10 = 438,184.86 : x
  2. Step 2: Convert to fraction form
    800,760.97/1,105,050.10 = 438,184.86/x
  3. Step 3: Cross multiply
    800,760.97x = 1,105,050.10 × 438,184.86
  4. Step 4: Simplify right side
    800,760.97x = 484,216,221,170.56
  5. Step 5: Solve for x
    x = 484,216,221,170.56/800,760.97
  6. Step 6: Final answer
    x = 604,695.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.