Home / 804,415.76-1,207,132.32-449,662.80

Finding the Fourth Proportional to 804,415.76, 1,207,132.32 and 449,662.80

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Solution

The fourth proportional to 804,415.76, 1,207,132.32 and 449,662.80 is: 674,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,415.76 : 1,207,132.32 = 449,662.80 : x
  2. Step 2: Convert to fraction form
    804,415.76/1,207,132.32 = 449,662.80/x
  3. Step 3: Cross multiply
    804,415.76x = 1,207,132.32 × 449,662.80
  4. Step 4: Simplify right side
    804,415.76x = 542,802,498,981.70
  5. Step 5: Solve for x
    x = 542,802,498,981.70/804,415.76
  6. Step 6: Final answer
    x = 674,778.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.