Home / 801,456.79-1,106,012.24-438,904.39

Finding the Fourth Proportional to 801,456.79, 1,106,012.24 and 438,904.39

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Solution

The fourth proportional to 801,456.79, 1,106,012.24 and 438,904.39 is: 605,689.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,456.79 : 1,106,012.24 = 438,904.39 : x
  2. Step 2: Convert to fraction form
    801,456.79/1,106,012.24 = 438,904.39/x
  3. Step 3: Cross multiply
    801,456.79x = 1,106,012.24 × 438,904.39
  4. Step 4: Simplify right side
    801,456.79x = 485,433,627,529.73
  5. Step 5: Solve for x
    x = 485,433,627,529.73/801,456.79
  6. Step 6: Final answer
    x = 605,689.08

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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.