Home / 988,661.30-1,486,163.10-918,458.60

Finding the Fourth Proportional to 988,661.30, 1,486,163.10 and 918,458.60

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Solution

The fourth proportional to 988,661.30, 1,486,163.10 and 918,458.60 is: 1,380,633.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,661.30 : 1,486,163.10 = 918,458.60 : x
  2. Step 2: Convert to fraction form
    988,661.30/1,486,163.10 = 918,458.60/x
  3. Step 3: Cross multiply
    988,661.30x = 1,486,163.10 × 918,458.60
  4. Step 4: Simplify right side
    988,661.30x = 1,364,979,280,197.66
  5. Step 5: Solve for x
    x = 1,364,979,280,197.66/988,661.30
  6. Step 6: Final answer
    x = 1,380,633.87

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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.