Home / 515,775.24-773,672.41-178,826.87

Finding the Fourth Proportional to 515,775.24, 773,672.41 and 178,826.87

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Solution

The fourth proportional to 515,775.24, 773,672.41 and 178,826.87 is: 268,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,775.24 : 773,672.41 = 178,826.87 : x
  2. Step 2: Convert to fraction form
    515,775.24/773,672.41 = 178,826.87/x
  3. Step 3: Cross multiply
    515,775.24x = 773,672.41 × 178,826.87
  4. Step 4: Simplify right side
    515,775.24x = 138,353,415,485.66
  5. Step 5: Solve for x
    x = 138,353,415,485.66/515,775.24
  6. Step 6: Final answer
    x = 268,243.62

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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.