Home / 855,651.45-1,180,428.34-515,930.97

Finding the Fourth Proportional to 855,651.45, 1,180,428.34 and 515,930.97

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Solution

The fourth proportional to 855,651.45, 1,180,428.34 and 515,930.97 is: 711,761.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,651.45 : 1,180,428.34 = 515,930.97 : x
  2. Step 2: Convert to fraction form
    855,651.45/1,180,428.34 = 515,930.97/x
  3. Step 3: Cross multiply
    855,651.45x = 1,180,428.34 × 515,930.97
  4. Step 4: Simplify right side
    855,651.45x = 609,019,538,471.69
  5. Step 5: Solve for x
    x = 609,019,538,471.69/855,651.45
  6. Step 6: Final answer
    x = 711,761.24

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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.