Home / 419,933.71-579,483.55-238,620.48

Finding the Fourth Proportional to 419,933.71, 579,483.55 and 238,620.48

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Solution

The fourth proportional to 419,933.71, 579,483.55 and 238,620.48 is: 329,282.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,933.71 : 579,483.55 = 238,620.48 : x
  2. Step 2: Convert to fraction form
    419,933.71/579,483.55 = 238,620.48/x
  3. Step 3: Cross multiply
    419,933.71x = 579,483.55 × 238,620.48
  4. Step 4: Simplify right side
    419,933.71x = 138,276,642,853.10
  5. Step 5: Solve for x
    x = 138,276,642,853.10/419,933.71
  6. Step 6: Final answer
    x = 329,282.07

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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.