Home / 786,982.08-1,086,035.40-447,471.12

Finding the Fourth Proportional to 786,982.08, 1,086,035.40 and 447,471.12

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Solution

The fourth proportional to 786,982.08, 1,086,035.40 and 447,471.12 is: 617,510.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,982.08 : 1,086,035.40 = 447,471.12 : x
  2. Step 2: Convert to fraction form
    786,982.08/1,086,035.40 = 447,471.12/x
  3. Step 3: Cross multiply
    786,982.08x = 1,086,035.40 × 447,471.12
  4. Step 4: Simplify right side
    786,982.08x = 485,969,476,797.65
  5. Step 5: Solve for x
    x = 485,969,476,797.65/786,982.08
  6. Step 6: Final answer
    x = 617,510.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.