Home / 986,016.87-1,478,876.67-312,010.61

Finding the Fourth Proportional to 986,016.87, 1,478,876.67 and 312,010.61

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Solution

The fourth proportional to 986,016.87, 1,478,876.67 and 312,010.61 is: 467,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,016.87 : 1,478,876.67 = 312,010.61 : x
  2. Step 2: Convert to fraction form
    986,016.87/1,478,876.67 = 312,010.61/x
  3. Step 3: Cross multiply
    986,016.87x = 1,478,876.67 × 312,010.61
  4. Step 4: Simplify right side
    986,016.87x = 461,425,204,527.09
  5. Step 5: Solve for x
    x = 461,425,204,527.09/986,016.87
  6. Step 6: Final answer
    x = 467,968.87

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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.