Home / 998,109.36-1,377,394.44-545,400.36

Finding the Fourth Proportional to 998,109.36, 1,377,394.44 and 545,400.36

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Solution

The fourth proportional to 998,109.36, 1,377,394.44 and 545,400.36 is: 752,654.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,109.36 : 1,377,394.44 = 545,400.36 : x
  2. Step 2: Convert to fraction form
    998,109.36/1,377,394.44 = 545,400.36/x
  3. Step 3: Cross multiply
    998,109.36x = 1,377,394.44 × 545,400.36
  4. Step 4: Simplify right side
    998,109.36x = 751,231,423,438.00
  5. Step 5: Solve for x
    x = 751,231,423,438.00/998,109.36
  6. Step 6: Final answer
    x = 752,654.42

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1.5x scale

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.