Home / 808,231.80-1,212,347.70-658,932.60

Finding the Fourth Proportional to 808,231.80, 1,212,347.70 and 658,932.60

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Solution

The fourth proportional to 808,231.80, 1,212,347.70 and 658,932.60 is: 988,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,231.80 : 1,212,347.70 = 658,932.60 : x
  2. Step 2: Convert to fraction form
    808,231.80/1,212,347.70 = 658,932.60/x
  3. Step 3: Cross multiply
    808,231.80x = 1,212,347.70 × 658,932.60
  4. Step 4: Simplify right side
    808,231.80x = 798,855,422,065.02
  5. Step 5: Solve for x
    x = 798,855,422,065.02/808,231.80
  6. Step 6: Final answer
    x = 988,398.90

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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.