Home / 787,338.77-1,086,185.27-481,427.88

Finding the Fourth Proportional to 787,338.77, 1,086,185.27 and 481,427.88

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Solution

The fourth proportional to 787,338.77, 1,086,185.27 and 481,427.88 is: 664,161.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,338.77 : 1,086,185.27 = 481,427.88 : x
  2. Step 2: Convert to fraction form
    787,338.77/1,086,185.27 = 481,427.88/x
  3. Step 3: Cross multiply
    787,338.77x = 1,086,185.27 × 481,427.88
  4. Step 4: Simplify right side
    787,338.77x = 522,919,869,416.19
  5. Step 5: Solve for x
    x = 522,919,869,416.19/787,338.77
  6. Step 6: Final answer
    x = 664,161.21

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Double scale
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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.