Home / 986,098.87-1,479,369.98-312,220.45

Finding the Fourth Proportional to 986,098.87, 1,479,369.98 and 312,220.45

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Solution

The fourth proportional to 986,098.87, 1,479,369.98 and 312,220.45 is: 468,400.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,098.87 : 1,479,369.98 = 312,220.45 : x
  2. Step 2: Convert to fraction form
    986,098.87/1,479,369.98 = 312,220.45/x
  3. Step 3: Cross multiply
    986,098.87x = 1,479,369.98 × 312,220.45
  4. Step 4: Simplify right side
    986,098.87x = 461,889,560,872.09
  5. Step 5: Solve for x
    x = 461,889,560,872.09/986,098.87
  6. Step 6: Final answer
    x = 468,400.86

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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.