Home / 785,388.60-1,178,082.90-682,745.40

Finding the Fourth Proportional to 785,388.60, 1,178,082.90 and 682,745.40

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Solution

The fourth proportional to 785,388.60, 1,178,082.90 and 682,745.40 is: 1,024,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,388.60 : 1,178,082.90 = 682,745.40 : x
  2. Step 2: Convert to fraction form
    785,388.60/1,178,082.90 = 682,745.40/x
  3. Step 3: Cross multiply
    785,388.60x = 1,178,082.90 × 682,745.40
  4. Step 4: Simplify right side
    785,388.60x = 804,330,680,793.66
  5. Step 5: Solve for x
    x = 804,330,680,793.66/785,388.60
  6. Step 6: Final answer
    x = 1,024,118.10

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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.