Home / 801,243.08-1,105,728.54-438,660.92

Finding the Fourth Proportional to 801,243.08, 1,105,728.54 and 438,660.92

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Solution

The fourth proportional to 801,243.08, 1,105,728.54 and 438,660.92 is: 605,359.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,243.08 : 1,105,728.54 = 438,660.92 : x
  2. Step 2: Convert to fraction form
    801,243.08/1,105,728.54 = 438,660.92/x
  3. Step 3: Cross multiply
    801,243.08x = 1,105,728.54 × 438,660.92
  4. Step 4: Simplify right side
    801,243.08x = 485,039,898,626.66
  5. Step 5: Solve for x
    x = 485,039,898,626.66/801,243.08
  6. Step 6: Final answer
    x = 605,359.24

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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.