Home / 781,025.78-1,171,090.26-307,452.80

Finding the Fourth Proportional to 781,025.78, 1,171,090.26 and 307,452.80

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Solution

The fourth proportional to 781,025.78, 1,171,090.26 and 307,452.80 is: 461,002.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,025.78 : 1,171,090.26 = 307,452.80 : x
  2. Step 2: Convert to fraction form
    781,025.78/1,171,090.26 = 307,452.80/x
  3. Step 3: Cross multiply
    781,025.78x = 1,171,090.26 × 307,452.80
  4. Step 4: Simplify right side
    781,025.78x = 360,054,979,489.73
  5. Step 5: Solve for x
    x = 360,054,979,489.73/781,025.78
  6. Step 6: Final answer
    x = 461,002.68

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Double scale
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1.5x scale

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.