Home / 674,611.20-1,011,333.60-408,088.80

Finding the Fourth Proportional to 674,611.20, 1,011,333.60 and 408,088.80

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Solution

The fourth proportional to 674,611.20, 1,011,333.60 and 408,088.80 is: 611,780.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,611.20 : 1,011,333.60 = 408,088.80 : x
  2. Step 2: Convert to fraction form
    674,611.20/1,011,333.60 = 408,088.80/x
  3. Step 3: Cross multiply
    674,611.20x = 1,011,333.60 × 408,088.80
  4. Step 4: Simplify right side
    674,611.20x = 412,713,915,223.68
  5. Step 5: Solve for x
    x = 412,713,915,223.68/674,611.20
  6. Step 6: Final answer
    x = 611,780.41

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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.