Home / 411,743.82-617,665.55-145,449.84

Finding the Fourth Proportional to 411,743.82, 617,665.55 and 145,449.84

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Solution

The fourth proportional to 411,743.82, 617,665.55 and 145,449.84 is: 218,192.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,743.82 : 617,665.55 = 145,449.84 : x
  2. Step 2: Convert to fraction form
    411,743.82/617,665.55 = 145,449.84/x
  3. Step 3: Cross multiply
    411,743.82x = 617,665.55 × 145,449.84
  4. Step 4: Simplify right side
    411,743.82x = 89,839,354,693.76
  5. Step 5: Solve for x
    x = 89,839,354,693.76/411,743.82
  6. Step 6: Final answer
    x = 218,192.36

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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.