Home / 678,325.89-1,017,478.31-229,362.06

Finding the Fourth Proportional to 678,325.89, 1,017,478.31 and 229,362.06

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Solution

The fourth proportional to 678,325.89, 1,017,478.31 and 229,362.06 is: 344,039.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,325.89 : 1,017,478.31 = 229,362.06 : x
  2. Step 2: Convert to fraction form
    678,325.89/1,017,478.31 = 229,362.06/x
  3. Step 3: Cross multiply
    678,325.89x = 1,017,478.31 × 229,362.06
  4. Step 4: Simplify right side
    678,325.89x = 233,370,920,040.11
  5. Step 5: Solve for x
    x = 233,370,920,040.11/678,325.89
  6. Step 6: Final answer
    x = 344,039.53

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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.