Home / 769,330.31-1,061,620.20-425,162.12

Finding the Fourth Proportional to 769,330.31, 1,061,620.20 and 425,162.12

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Solution

The fourth proportional to 769,330.31, 1,061,620.20 and 425,162.12 is: 586,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,330.31 : 1,061,620.20 = 425,162.12 : x
  2. Step 2: Convert to fraction form
    769,330.31/1,061,620.20 = 425,162.12/x
  3. Step 3: Cross multiply
    769,330.31x = 1,061,620.20 × 425,162.12
  4. Step 4: Simplify right side
    769,330.31x = 451,360,689,558.72
  5. Step 5: Solve for x
    x = 451,360,689,558.72/769,330.31
  6. Step 6: Final answer
    x = 586,692.98

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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.