Home / 1,013,217.21-1,521,564.48-899,621.73

Finding the Fourth Proportional to 1,013,217.21, 1,521,564.48 and 899,621.73

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Solution

The fourth proportional to 1,013,217.21, 1,521,564.48 and 899,621.73 is: 1,350,976.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,217.21 : 1,521,564.48 = 899,621.73 : x
  2. Step 2: Convert to fraction form
    1,013,217.21/1,521,564.48 = 899,621.73/x
  3. Step 3: Cross multiply
    1,013,217.21x = 1,521,564.48 × 899,621.73
  4. Step 4: Simplify right side
    1,013,217.21x = 1,368,832,469,804.15
  5. Step 5: Solve for x
    x = 1,368,832,469,804.15/1,013,217.21
  6. Step 6: Final answer
    x = 1,350,976.33

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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.