Home / 801,373.93-1,105,896.32-438,820.78

Finding the Fourth Proportional to 801,373.93, 1,105,896.32 and 438,820.78

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Solution

The fourth proportional to 801,373.93, 1,105,896.32 and 438,820.78 is: 605,572.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,373.93 : 1,105,896.32 = 438,820.78 : x
  2. Step 2: Convert to fraction form
    801,373.93/1,105,896.32 = 438,820.78/x
  3. Step 3: Cross multiply
    801,373.93x = 1,105,896.32 × 438,820.78
  4. Step 4: Simplify right side
    801,373.93x = 485,290,285,741.53
  5. Step 5: Solve for x
    x = 485,290,285,741.53/801,373.93
  6. Step 6: Final answer
    x = 605,572.84

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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.