Home / 641,800.83-962,810.61-322,105.17

Finding the Fourth Proportional to 641,800.83, 962,810.61 and 322,105.17

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Solution

The fourth proportional to 641,800.83, 962,810.61 and 322,105.17 is: 483,212.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,800.83 : 962,810.61 = 322,105.17 : x
  2. Step 2: Convert to fraction form
    641,800.83/962,810.61 = 322,105.17/x
  3. Step 3: Cross multiply
    641,800.83x = 962,810.61 × 322,105.17
  4. Step 4: Simplify right side
    641,800.83x = 310,126,275,211.85
  5. Step 5: Solve for x
    x = 310,126,275,211.85/641,800.83
  6. Step 6: Final answer
    x = 483,212.64

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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.