Home / 801,319.77-1,105,787.09-438,737.04

Finding the Fourth Proportional to 801,319.77, 1,105,787.09 and 438,737.04

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Solution

The fourth proportional to 801,319.77, 1,105,787.09 and 438,737.04 is: 605,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,319.77 : 1,105,787.09 = 438,737.04 : x
  2. Step 2: Convert to fraction form
    801,319.77/1,105,787.09 = 438,737.04/x
  3. Step 3: Cross multiply
    801,319.77x = 1,105,787.09 × 438,737.04
  4. Step 4: Simplify right side
    801,319.77x = 485,149,755,833.66
  5. Step 5: Solve for x
    x = 485,149,755,833.66/801,319.77
  6. Step 6: Final answer
    x = 605,438.40

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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.