Home / 769,319.94-1,061,682.73-425,178.18

Finding the Fourth Proportional to 769,319.94, 1,061,682.73 and 425,178.18

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Solution

The fourth proportional to 769,319.94, 1,061,682.73 and 425,178.18 is: 586,757.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,319.94 : 1,061,682.73 = 425,178.18 : x
  2. Step 2: Convert to fraction form
    769,319.94/1,061,682.73 = 425,178.18/x
  3. Step 3: Cross multiply
    769,319.94x = 1,061,682.73 × 425,178.18
  4. Step 4: Simplify right side
    769,319.94x = 451,404,330,878.83
  5. Step 5: Solve for x
    x = 451,404,330,878.83/769,319.94
  6. Step 6: Final answer
    x = 586,757.61

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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.