Home / 787,902.93-1,087,186.05-443,720.84

Finding the Fourth Proportional to 787,902.93, 1,087,186.05 and 443,720.84

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Solution

The fourth proportional to 787,902.93, 1,087,186.05 and 443,720.84 is: 612,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,902.93 : 1,087,186.05 = 443,720.84 : x
  2. Step 2: Convert to fraction form
    787,902.93/1,087,186.05 = 443,720.84/x
  3. Step 3: Cross multiply
    787,902.93x = 1,087,186.05 × 443,720.84
  4. Step 4: Simplify right side
    787,902.93x = 482,407,101,906.35
  5. Step 5: Solve for x
    x = 482,407,101,906.35/787,902.93
  6. Step 6: Final answer
    x = 612,267.18

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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.