Home / 781,028.78-1,171,094.76-307,455.80

Finding the Fourth Proportional to 781,028.78, 1,171,094.76 and 307,455.80

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Solution

The fourth proportional to 781,028.78, 1,171,094.76 and 307,455.80 is: 461,007.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,028.78 : 1,171,094.76 = 307,455.80 : x
  2. Step 2: Convert to fraction form
    781,028.78/1,171,094.76 = 307,455.80/x
  3. Step 3: Cross multiply
    781,028.78x = 1,171,094.76 × 307,455.80
  4. Step 4: Simplify right side
    781,028.78x = 360,059,876,311.61
  5. Step 5: Solve for x
    x = 360,059,876,311.61/781,028.78
  6. Step 6: Final answer
    x = 461,007.18

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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.