Home / 670,891.20-1,006,336.80-221,611.20

Finding the Fourth Proportional to 670,891.20, 1,006,336.80 and 221,611.20

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Solution

The fourth proportional to 670,891.20, 1,006,336.80 and 221,611.20 is: 332,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,891.20 : 1,006,336.80 = 221,611.20 : x
  2. Step 2: Convert to fraction form
    670,891.20/1,006,336.80 = 221,611.20/x
  3. Step 3: Cross multiply
    670,891.20x = 1,006,336.80 × 221,611.20
  4. Step 4: Simplify right side
    670,891.20x = 223,015,505,852.16
  5. Step 5: Solve for x
    x = 223,015,505,852.16/670,891.20
  6. Step 6: Final answer
    x = 332,416.80

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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.