Home / 1,189,873.50-1,642,016.31-645,998.49

Finding the Fourth Proportional to 1,189,873.50, 1,642,016.31 and 645,998.49

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Solution

The fourth proportional to 1,189,873.50, 1,642,016.31 and 645,998.49 is: 891,472.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,873.50 : 1,642,016.31 = 645,998.49 : x
  2. Step 2: Convert to fraction form
    1,189,873.50/1,642,016.31 = 645,998.49/x
  3. Step 3: Cross multiply
    1,189,873.50x = 1,642,016.31 × 645,998.49
  4. Step 4: Simplify right side
    1,189,873.50x = 1,060,740,054,392.88
  5. Step 5: Solve for x
    x = 1,060,740,054,392.88/1,189,873.50
  6. Step 6: Final answer
    x = 891,472.97

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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.