Home / 678,326.39-1,017,479.06-229,362.56

Finding the Fourth Proportional to 678,326.39, 1,017,479.06 and 229,362.56

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Solution

The fourth proportional to 678,326.39, 1,017,479.06 and 229,362.56 is: 344,040.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,326.39 : 1,017,479.06 = 229,362.56 : x
  2. Step 2: Convert to fraction form
    678,326.39/1,017,479.06 = 229,362.56/x
  3. Step 3: Cross multiply
    678,326.39x = 1,017,479.06 × 229,362.56
  4. Step 4: Simplify right side
    678,326.39x = 233,371,600,801.18
  5. Step 5: Solve for x
    x = 233,371,600,801.18/678,326.39
  6. Step 6: Final answer
    x = 344,040.28

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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.