Home / 516,419.78-774,629.06-179,460.45

Finding the Fourth Proportional to 516,419.78, 774,629.06 and 179,460.45

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Solution

The fourth proportional to 516,419.78, 774,629.06 and 179,460.45 is: 269,190.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,419.78 : 774,629.06 = 179,460.45 : x
  2. Step 2: Convert to fraction form
    516,419.78/774,629.06 = 179,460.45/x
  3. Step 3: Cross multiply
    516,419.78x = 774,629.06 × 179,460.45
  4. Step 4: Simplify right side
    516,419.78x = 139,015,280,139.33
  5. Step 5: Solve for x
    x = 139,015,280,139.33/516,419.78
  6. Step 6: Final answer
    x = 269,190.47

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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.