Home / 801,323.32-1,105,825.98-438,747.08

Finding the Fourth Proportional to 801,323.32, 1,105,825.98 and 438,747.08

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Solution

The fourth proportional to 801,323.32, 1,105,825.98 and 438,747.08 is: 605,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,323.32 : 1,105,825.98 = 438,747.08 : x
  2. Step 2: Convert to fraction form
    801,323.32/1,105,825.98 = 438,747.08/x
  3. Step 3: Cross multiply
    801,323.32x = 1,105,825.98 × 438,747.08
  4. Step 4: Simplify right side
    801,323.32x = 485,177,911,990.27
  5. Step 5: Solve for x
    x = 485,177,911,990.27/801,323.32
  6. Step 6: Final answer
    x = 605,470.85

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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.