Home / 1,259,891.80-1,888,628.10-418,010.20

Finding the Fourth Proportional to 1,259,891.80, 1,888,628.10 and 418,010.20

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Solution

The fourth proportional to 1,259,891.80, 1,888,628.10 and 418,010.20 is: 626,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,891.80 : 1,888,628.10 = 418,010.20 : x
  2. Step 2: Convert to fraction form
    1,259,891.80/1,888,628.10 = 418,010.20/x
  3. Step 3: Cross multiply
    1,259,891.80x = 1,888,628.10 × 418,010.20
  4. Step 4: Simplify right side
    1,259,891.80x = 789,465,809,806.62
  5. Step 5: Solve for x
    x = 789,465,809,806.62/1,259,891.80
  6. Step 6: Final answer
    x = 626,613.98

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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.