Home / 800,780.73-1,105,077.33-438,204.66

Finding the Fourth Proportional to 800,780.73, 1,105,077.33 and 438,204.66

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Solution

The fourth proportional to 800,780.73, 1,105,077.33 and 438,204.66 is: 604,722.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,780.73 : 1,105,077.33 = 438,204.66 : x
  2. Step 2: Convert to fraction form
    800,780.73/1,105,077.33 = 438,204.66/x
  3. Step 3: Cross multiply
    800,780.73x = 1,105,077.33 × 438,204.66
  4. Step 4: Simplify right side
    800,780.73x = 484,250,035,666.36
  5. Step 5: Solve for x
    x = 484,250,035,666.36/800,780.73
  6. Step 6: Final answer
    x = 604,722.39

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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.