Home / 711,974.46-982,486.91-389,622.29

Finding the Fourth Proportional to 711,974.46, 982,486.91 and 389,622.29

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Solution

The fourth proportional to 711,974.46, 982,486.91 and 389,622.29 is: 537,658.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,974.46 : 982,486.91 = 389,622.29 : x
  2. Step 2: Convert to fraction form
    711,974.46/982,486.91 = 389,622.29/x
  3. Step 3: Cross multiply
    711,974.46x = 982,486.91 × 389,622.29
  4. Step 4: Simplify right side
    711,974.46x = 382,798,792,908.68
  5. Step 5: Solve for x
    x = 382,798,792,908.68/711,974.46
  6. Step 6: Final answer
    x = 537,658.04

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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.