Home / 628,441.85-942,650.01-155,131.31

Finding the Fourth Proportional to 628,441.85, 942,650.01 and 155,131.31

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Solution

The fourth proportional to 628,441.85, 942,650.01 and 155,131.31 is: 232,693.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,441.85 : 942,650.01 = 155,131.31 : x
  2. Step 2: Convert to fraction form
    628,441.85/942,650.01 = 155,131.31/x
  3. Step 3: Cross multiply
    628,441.85x = 942,650.01 × 155,131.31
  4. Step 4: Simplify right side
    628,441.85x = 146,234,526,209.56
  5. Step 5: Solve for x
    x = 146,234,526,209.56/628,441.85
  6. Step 6: Final answer
    x = 232,693.81

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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.