Home / 787,522.22-1,086,724.22-443,340.30

Finding the Fourth Proportional to 787,522.22, 1,086,724.22 and 443,340.30

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Solution

The fourth proportional to 787,522.22, 1,086,724.22 and 443,340.30 is: 611,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,522.22 : 1,086,724.22 = 443,340.30 : x
  2. Step 2: Convert to fraction form
    787,522.22/1,086,724.22 = 443,340.30/x
  3. Step 3: Cross multiply
    787,522.22x = 1,086,724.22 × 443,340.30
  4. Step 4: Simplify right side
    787,522.22x = 481,788,639,495.37
  5. Step 5: Solve for x
    x = 481,788,639,495.37/787,522.22
  6. Step 6: Final answer
    x = 611,777.84

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Double scale
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Similar ratio
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1.5x scale

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.