Home / 998,725.23-1,380,066.53-711,747.09

Finding the Fourth Proportional to 998,725.23, 1,380,066.53 and 711,747.09

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Solution

The fourth proportional to 998,725.23, 1,380,066.53 and 711,747.09 is: 983,512.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,725.23 : 1,380,066.53 = 711,747.09 : x
  2. Step 2: Convert to fraction form
    998,725.23/1,380,066.53 = 711,747.09/x
  3. Step 3: Cross multiply
    998,725.23x = 1,380,066.53 × 711,747.09
  4. Step 4: Simplify right side
    998,725.23x = 982,258,333,175.16
  5. Step 5: Solve for x
    x = 982,258,333,175.16/998,725.23
  6. Step 6: Final answer
    x = 983,512.08

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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.