Home / 801,029.47-1,105,377.87-438,383.20

Finding the Fourth Proportional to 801,029.47, 1,105,377.87 and 438,383.20

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Solution

The fourth proportional to 801,029.47, 1,105,377.87 and 438,383.20 is: 604,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,029.47 : 1,105,377.87 = 438,383.20 : x
  2. Step 2: Convert to fraction form
    801,029.47/1,105,377.87 = 438,383.20/x
  3. Step 3: Cross multiply
    801,029.47x = 1,105,377.87 × 438,383.20
  4. Step 4: Simplify right side
    801,029.47x = 484,579,087,859.78
  5. Step 5: Solve for x
    x = 484,579,087,859.78/801,029.47
  6. Step 6: Final answer
    x = 604,945.39

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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.