Home / 405,493.24-607,842.60-225,664.40

Finding the Fourth Proportional to 405,493.24, 607,842.60 and 225,664.40

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Solution

The fourth proportional to 405,493.24, 607,842.60 and 225,664.40 is: 338,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,493.24 : 607,842.60 = 225,664.40 : x
  2. Step 2: Convert to fraction form
    405,493.24/607,842.60 = 225,664.40/x
  3. Step 3: Cross multiply
    405,493.24x = 607,842.60 × 225,664.40
  4. Step 4: Simplify right side
    405,493.24x = 137,168,435,623.44
  5. Step 5: Solve for x
    x = 137,168,435,623.44/405,493.24
  6. Step 6: Final answer
    x = 338,275.52

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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.