Home / 628,478.06-942,719.01-155,163.47

Finding the Fourth Proportional to 628,478.06, 942,719.01 and 155,163.47

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Solution

The fourth proportional to 628,478.06, 942,719.01 and 155,163.47 is: 232,745.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,478.06 : 942,719.01 = 155,163.47 : x
  2. Step 2: Convert to fraction form
    628,478.06/942,719.01 = 155,163.47/x
  3. Step 3: Cross multiply
    628,478.06x = 942,719.01 × 155,163.47
  4. Step 4: Simplify right side
    628,478.06x = 146,275,552,826.57
  5. Step 5: Solve for x
    x = 146,275,552,826.57/628,478.06
  6. Step 6: Final answer
    x = 232,745.68

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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.