Home / 641,981.12-962,969.36-192,700.04

Finding the Fourth Proportional to 641,981.12, 962,969.36 and 192,700.04

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Solution

The fourth proportional to 641,981.12, 962,969.36 and 192,700.04 is: 289,049.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,981.12 : 962,969.36 = 192,700.04 : x
  2. Step 2: Convert to fraction form
    641,981.12/962,969.36 = 192,700.04/x
  3. Step 3: Cross multiply
    641,981.12x = 962,969.36 × 192,700.04
  4. Step 4: Simplify right side
    641,981.12x = 185,564,228,412.43
  5. Step 5: Solve for x
    x = 185,564,228,412.43/641,981.12
  6. Step 6: Final answer
    x = 289,049.36

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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.