Home / 781,573.05-1,171,747.09-308,612.43

Finding the Fourth Proportional to 781,573.05, 1,171,747.09 and 308,612.43

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Solution

The fourth proportional to 781,573.05, 1,171,747.09 and 308,612.43 is: 462,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,573.05 : 1,171,747.09 = 308,612.43 : x
  2. Step 2: Convert to fraction form
    781,573.05/1,171,747.09 = 308,612.43/x
  3. Step 3: Cross multiply
    781,573.05x = 1,171,747.09 × 308,612.43
  4. Step 4: Simplify right side
    781,573.05x = 361,615,716,790.33
  5. Step 5: Solve for x
    x = 361,615,716,790.33/781,573.05
  6. Step 6: Final answer
    x = 462,676.80

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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.