Home / 801,472.83-1,105,999.27-438,890.44

Finding the Fourth Proportional to 801,472.83, 1,105,999.27 and 438,890.44

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Solution

The fourth proportional to 801,472.83, 1,105,999.27 and 438,890.44 is: 605,650.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,472.83 : 1,105,999.27 = 438,890.44 : x
  2. Step 2: Convert to fraction form
    801,472.83/1,105,999.27 = 438,890.44/x
  3. Step 3: Cross multiply
    801,472.83x = 1,105,999.27 × 438,890.44
  4. Step 4: Simplify right side
    801,472.83x = 485,412,506,249.98
  5. Step 5: Solve for x
    x = 485,412,506,249.98/801,472.83
  6. Step 6: Final answer
    x = 605,650.61

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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.