Home / 1,259,894.80-1,888,632.60-418,013.20

Finding the Fourth Proportional to 1,259,894.80, 1,888,632.60 and 418,013.20

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Solution

The fourth proportional to 1,259,894.80, 1,888,632.60 and 418,013.20 is: 626,618.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,894.80 : 1,888,632.60 = 418,013.20 : x
  2. Step 2: Convert to fraction form
    1,259,894.80/1,888,632.60 = 418,013.20/x
  3. Step 3: Cross multiply
    1,259,894.80x = 1,888,632.60 × 418,013.20
  4. Step 4: Simplify right side
    1,259,894.80x = 789,473,356,750.32
  5. Step 5: Solve for x
    x = 789,473,356,750.32/1,259,894.80
  6. Step 6: Final answer
    x = 626,618.47

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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.