Home / 674,613.20-1,011,336.60-408,090.80

Finding the Fourth Proportional to 674,613.20, 1,011,336.60 and 408,090.80

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Solution

The fourth proportional to 674,613.20, 1,011,336.60 and 408,090.80 is: 611,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,613.20 : 1,011,336.60 = 408,090.80 : x
  2. Step 2: Convert to fraction form
    674,613.20/1,011,336.60 = 408,090.80/x
  3. Step 3: Cross multiply
    674,613.20x = 1,011,336.60 × 408,090.80
  4. Step 4: Simplify right side
    674,613.20x = 412,717,162,163.28
  5. Step 5: Solve for x
    x = 412,717,162,163.28/674,613.20
  6. Step 6: Final answer
    x = 611,783.41

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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.