Home / 787,487.58-1,086,814.50-481,767.60

Finding the Fourth Proportional to 787,487.58, 1,086,814.50 and 481,767.60

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Solution

The fourth proportional to 787,487.58, 1,086,814.50 and 481,767.60 is: 664,889.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,487.58 : 1,086,814.50 = 481,767.60 : x
  2. Step 2: Convert to fraction form
    787,487.58/1,086,814.50 = 481,767.60/x
  3. Step 3: Cross multiply
    787,487.58x = 1,086,814.50 × 481,767.60
  4. Step 4: Simplify right side
    787,487.58x = 523,592,013,310.20
  5. Step 5: Solve for x
    x = 523,592,013,310.20/787,487.58
  6. Step 6: Final answer
    x = 664,889.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.