Home / 757,826.80-1,134,115.80-521,630.80

Finding the Fourth Proportional to 757,826.80, 1,134,115.80 and 521,630.80

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Solution

The fourth proportional to 757,826.80, 1,134,115.80 and 521,630.80 is: 780,639.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,826.80 : 1,134,115.80 = 521,630.80 : x
  2. Step 2: Convert to fraction form
    757,826.80/1,134,115.80 = 521,630.80/x
  3. Step 3: Cross multiply
    757,826.80x = 1,134,115.80 × 521,630.80
  4. Step 4: Simplify right side
    757,826.80x = 591,589,732,046.64
  5. Step 5: Solve for x
    x = 591,589,732,046.64/757,826.80
  6. Step 6: Final answer
    x = 780,639.76

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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.