Home / 986,560.82-1,479,882.39-312,627.21

Finding the Fourth Proportional to 986,560.82, 1,479,882.39 and 312,627.21

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Solution

The fourth proportional to 986,560.82, 1,479,882.39 and 312,627.21 is: 468,953.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,560.82 : 1,479,882.39 = 312,627.21 : x
  2. Step 2: Convert to fraction form
    986,560.82/1,479,882.39 = 312,627.21/x
  3. Step 3: Cross multiply
    986,560.82x = 1,479,882.39 × 312,627.21
  4. Step 4: Simplify right side
    986,560.82x = 462,651,500,863.98
  5. Step 5: Solve for x
    x = 462,651,500,863.98/986,560.82
  6. Step 6: Final answer
    x = 468,953.86

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1.5x scale

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.