Home / 810,215.60-1,212,990.60-726,234.80

Finding the Fourth Proportional to 810,215.60, 1,212,990.60 and 726,234.80

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Solution

The fourth proportional to 810,215.60, 1,212,990.60 and 726,234.80 is: 1,087,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,215.60 : 1,212,990.60 = 726,234.80 : x
  2. Step 2: Convert to fraction form
    810,215.60/1,212,990.60 = 726,234.80/x
  3. Step 3: Cross multiply
    810,215.60x = 1,212,990.60 × 726,234.80
  4. Step 4: Simplify right side
    810,215.60x = 880,915,985,792.88
  5. Step 5: Solve for x
    x = 880,915,985,792.88/810,215.60
  6. Step 6: Final answer
    x = 1,087,261.20

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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.