Home / 986,380.40-1,479,133.20-454,064.60

Finding the Fourth Proportional to 986,380.40, 1,479,133.20 and 454,064.60

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Solution

The fourth proportional to 986,380.40, 1,479,133.20 and 454,064.60 is: 680,895.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,380.40 : 1,479,133.20 = 454,064.60 : x
  2. Step 2: Convert to fraction form
    986,380.40/1,479,133.20 = 454,064.60/x
  3. Step 3: Cross multiply
    986,380.40x = 1,479,133.20 × 454,064.60
  4. Step 4: Simplify right side
    986,380.40x = 671,622,024,804.72
  5. Step 5: Solve for x
    x = 671,622,024,804.72/986,380.40
  6. Step 6: Final answer
    x = 680,895.55

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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.