Home / 418,638.60-577,736.46-239,825.16

Finding the Fourth Proportional to 418,638.60, 577,736.46 and 239,825.16

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Solution

The fourth proportional to 418,638.60, 577,736.46 and 239,825.16 is: 330,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,638.60 : 577,736.46 = 239,825.16 : x
  2. Step 2: Convert to fraction form
    418,638.60/577,736.46 = 239,825.16/x
  3. Step 3: Cross multiply
    418,638.60x = 577,736.46 × 239,825.16
  4. Step 4: Simplify right side
    418,638.60x = 138,555,738,957.33
  5. Step 5: Solve for x
    x = 138,555,738,957.33/418,638.60
  6. Step 6: Final answer
    x = 330,967.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.