Home / 801,621.29-1,106,193.28-438,974.78

Finding the Fourth Proportional to 801,621.29, 1,106,193.28 and 438,974.78

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Solution

The fourth proportional to 801,621.29, 1,106,193.28 and 438,974.78 is: 605,761.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,621.29 : 1,106,193.28 = 438,974.78 : x
  2. Step 2: Convert to fraction form
    801,621.29/1,106,193.28 = 438,974.78/x
  3. Step 3: Cross multiply
    801,621.29x = 1,106,193.28 × 438,974.78
  4. Step 4: Simplify right side
    801,621.29x = 485,590,943,999.64
  5. Step 5: Solve for x
    x = 485,590,943,999.64/801,621.29
  6. Step 6: Final answer
    x = 605,761.04

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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.