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Finding the Fourth Proportional to 800,187.65, 1,104,660.50 and 618,488.96

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Solution

The fourth proportional to 800,187.65, 1,104,660.50 and 618,488.96 is: 853,825.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,187.65 : 1,104,660.50 = 618,488.96 : x
  2. Step 2: Convert to fraction form
    800,187.65/1,104,660.50 = 618,488.96/x
  3. Step 3: Cross multiply
    800,187.65x = 1,104,660.50 × 618,488.96
  4. Step 4: Simplify right side
    800,187.65x = 683,220,315,182.33
  5. Step 5: Solve for x
    x = 683,220,315,182.33/800,187.65
  6. Step 6: Final answer
    x = 853,825.12

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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.