Home / 778,229.38-1,073,972.94-438,697.63

Finding the Fourth Proportional to 778,229.38, 1,073,972.94 and 438,697.63

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Solution

The fourth proportional to 778,229.38, 1,073,972.94 and 438,697.63 is: 605,411.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,229.38 : 1,073,972.94 = 438,697.63 : x
  2. Step 2: Convert to fraction form
    778,229.38/1,073,972.94 = 438,697.63/x
  3. Step 3: Cross multiply
    778,229.38x = 1,073,972.94 × 438,697.63
  4. Step 4: Simplify right side
    778,229.38x = 471,149,383,462.13
  5. Step 5: Solve for x
    x = 471,149,383,462.13/778,229.38
  6. Step 6: Final answer
    x = 605,411.97

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Double scale
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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.