Home / 821,340.06-1,230,291.56-660,546.82

Finding the Fourth Proportional to 821,340.06, 1,230,291.56 and 660,546.82

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Solution

The fourth proportional to 821,340.06, 1,230,291.56 and 660,546.82 is: 989,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,340.06 : 1,230,291.56 = 660,546.82 : x
  2. Step 2: Convert to fraction form
    821,340.06/1,230,291.56 = 660,546.82/x
  3. Step 3: Cross multiply
    821,340.06x = 1,230,291.56 × 660,546.82
  4. Step 4: Simplify right side
    821,340.06x = 812,665,177,630.84
  5. Step 5: Solve for x
    x = 812,665,177,630.84/821,340.06
  6. Step 6: Final answer
    x = 989,438.14

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1.5x scale

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.