Home / 801,382.86-1,105,910.28-438,830.64

Finding the Fourth Proportional to 801,382.86, 1,105,910.28 and 438,830.64

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Solution

The fourth proportional to 801,382.86, 1,105,910.28 and 438,830.64 is: 605,587.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,382.86 : 1,105,910.28 = 438,830.64 : x
  2. Step 2: Convert to fraction form
    801,382.86/1,105,910.28 = 438,830.64/x
  3. Step 3: Cross multiply
    801,382.86x = 1,105,910.28 × 438,830.64
  4. Step 4: Simplify right side
    801,382.86x = 485,307,315,954.98
  5. Step 5: Solve for x
    x = 485,307,315,954.98/801,382.86
  6. Step 6: Final answer
    x = 605,587.34

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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.