Home / 725,320.12-1,080,690.14-684,575.50

Finding the Fourth Proportional to 725,320.12, 1,080,690.14 and 684,575.50

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Solution

The fourth proportional to 725,320.12, 1,080,690.14 and 684,575.50 is: 1,019,982.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,320.12 : 1,080,690.14 = 684,575.50 : x
  2. Step 2: Convert to fraction form
    725,320.12/1,080,690.14 = 684,575.50/x
  3. Step 3: Cross multiply
    725,320.12x = 1,080,690.14 × 684,575.50
  4. Step 4: Simplify right side
    725,320.12x = 739,813,992,935.57
  5. Step 5: Solve for x
    x = 739,813,992,935.57/725,320.12
  6. Step 6: Final answer
    x = 1,019,982.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.