Home / 787,383.93-1,086,577.55-443,219.11

Finding the Fourth Proportional to 787,383.93, 1,086,577.55 and 443,219.11

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Solution

The fourth proportional to 787,383.93, 1,086,577.55 and 443,219.11 is: 611,635.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,383.93 : 1,086,577.55 = 443,219.11 : x
  2. Step 2: Convert to fraction form
    787,383.93/1,086,577.55 = 443,219.11/x
  3. Step 3: Cross multiply
    787,383.93x = 1,086,577.55 × 443,219.11
  4. Step 4: Simplify right side
    787,383.93x = 481,591,932,440.89
  5. Step 5: Solve for x
    x = 481,591,932,440.89/787,383.93
  6. Step 6: Final answer
    x = 611,635.46

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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.