Home / 801,309.72-1,105,765.32-438,664.08

Finding the Fourth Proportional to 801,309.72, 1,105,765.32 and 438,664.08

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Solution

The fourth proportional to 801,309.72, 1,105,765.32 and 438,664.08 is: 605,333.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,309.72 : 1,105,765.32 = 438,664.08 : x
  2. Step 2: Convert to fraction form
    801,309.72/1,105,765.32 = 438,664.08/x
  3. Step 3: Cross multiply
    801,309.72x = 1,105,765.32 × 438,664.08
  4. Step 4: Simplify right side
    801,309.72x = 485,059,526,793.71
  5. Step 5: Solve for x
    x = 485,059,526,793.71/801,309.72
  6. Step 6: Final answer
    x = 605,333.39

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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.