Home / 801,437.89-1,105,984.26-438,883.92

Finding the Fourth Proportional to 801,437.89, 1,105,984.26 and 438,883.92

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Solution

The fourth proportional to 801,437.89, 1,105,984.26 and 438,883.92 is: 605,659.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,437.89 : 1,105,984.26 = 438,883.92 : x
  2. Step 2: Convert to fraction form
    801,437.89/1,105,984.26 = 438,883.92/x
  3. Step 3: Cross multiply
    801,437.89x = 1,105,984.26 × 438,883.92
  4. Step 4: Simplify right side
    801,437.89x = 485,398,704,985.47
  5. Step 5: Solve for x
    x = 485,398,704,985.47/801,437.89
  6. Step 6: Final answer
    x = 605,659.79

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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.