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Finding the Fourth Proportional to 998,937.98, 1,376,651 and 722,828.54

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Solution

The fourth proportional to 998,937.98, 1,376,651 and 722,828.54 is: 996,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,937.98 : 1,376,651 = 722,828.54 : x
  2. Step 2: Convert to fraction form
    998,937.98/1,376,651 = 722,828.54/x
  3. Step 3: Cross multiply
    998,937.98x = 1,376,651 × 722,828.54
  4. Step 4: Simplify right side
    998,937.98x = 995,082,632,419.54
  5. Step 5: Solve for x
    x = 995,082,632,419.54/998,937.98
  6. Step 6: Final answer
    x = 996,140.55

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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.