Home / 986,912.60-1,480,147.44-453,921.56

Finding the Fourth Proportional to 986,912.60, 1,480,147.44 and 453,921.56

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Solution

The fourth proportional to 986,912.60, 1,480,147.44 and 453,921.56 is: 680,780.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,912.60 : 1,480,147.44 = 453,921.56 : x
  2. Step 2: Convert to fraction form
    986,912.60/1,480,147.44 = 453,921.56/x
  3. Step 3: Cross multiply
    986,912.60x = 1,480,147.44 × 453,921.56
  4. Step 4: Simplify right side
    986,912.60x = 671,870,827,594.07
  5. Step 5: Solve for x
    x = 671,870,827,594.07/986,912.60
  6. Step 6: Final answer
    x = 680,780.48

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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.