Home / 405,531.20-607,798.56-227,665.28

Finding the Fourth Proportional to 405,531.20, 607,798.56 and 227,665.28

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Solution

The fourth proportional to 405,531.20, 607,798.56 and 227,665.28 is: 341,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,531.20 : 607,798.56 = 227,665.28 : x
  2. Step 2: Convert to fraction form
    405,531.20/607,798.56 = 227,665.28/x
  3. Step 3: Cross multiply
    405,531.20x = 607,798.56 × 227,665.28
  4. Step 4: Simplify right side
    405,531.20x = 138,374,629,346.00
  5. Step 5: Solve for x
    x = 138,374,629,346.00/405,531.20
  6. Step 6: Final answer
    x = 341,218.21

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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.