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Finding the Fourth Proportional to 641,890.80, 962,471.70 and 242,544.60

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Solution

The fourth proportional to 641,890.80, 962,471.70 and 242,544.60 is: 363,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,890.80 : 962,471.70 = 242,544.60 : x
  2. Step 2: Convert to fraction form
    641,890.80/962,471.70 = 242,544.60/x
  3. Step 3: Cross multiply
    641,890.80x = 962,471.70 × 242,544.60
  4. Step 4: Simplify right side
    641,890.80x = 233,442,313,487.82
  5. Step 5: Solve for x
    x = 233,442,313,487.82/641,890.80
  6. Step 6: Final answer
    x = 363,679.17

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1.5x scale

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.