Home / 521,231.20-719,376.24-330,262.36

Finding the Fourth Proportional to 521,231.20, 719,376.24 and 330,262.36

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Solution

The fourth proportional to 521,231.20, 719,376.24 and 330,262.36 is: 455,810.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,231.20 : 719,376.24 = 330,262.36 : x
  2. Step 2: Convert to fraction form
    521,231.20/719,376.24 = 330,262.36/x
  3. Step 3: Cross multiply
    521,231.20x = 719,376.24 × 330,262.36
  4. Step 4: Simplify right side
    521,231.20x = 237,582,894,750.33
  5. Step 5: Solve for x
    x = 237,582,894,750.33/521,231.20
  6. Step 6: Final answer
    x = 455,810.96

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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.