Home / 801,325.70-1,105,829.26-438,749.45

Finding the Fourth Proportional to 801,325.70, 1,105,829.26 and 438,749.45

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Solution

The fourth proportional to 801,325.70, 1,105,829.26 and 438,749.45 is: 605,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,325.70 : 1,105,829.26 = 438,749.45 : x
  2. Step 2: Convert to fraction form
    801,325.70/1,105,829.26 = 438,749.45/x
  3. Step 3: Cross multiply
    801,325.70x = 1,105,829.26 × 438,749.45
  4. Step 4: Simplify right side
    801,325.70x = 485,181,979,618.91
  5. Step 5: Solve for x
    x = 485,181,979,618.91/801,325.70
  6. Step 6: Final answer
    x = 605,474.13

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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.