Home / 419,929.84-579,503.16-238,642.12

Finding the Fourth Proportional to 419,929.84, 579,503.16 and 238,642.12

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Solution

The fourth proportional to 419,929.84, 579,503.16 and 238,642.12 is: 329,326.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,929.84 : 579,503.16 = 238,642.12 : x
  2. Step 2: Convert to fraction form
    419,929.84/579,503.16 = 238,642.12/x
  3. Step 3: Cross multiply
    419,929.84x = 579,503.16 × 238,642.12
  4. Step 4: Simplify right side
    419,929.84x = 138,293,862,649.10
  5. Step 5: Solve for x
    x = 138,293,862,649.10/419,929.84
  6. Step 6: Final answer
    x = 329,326.11

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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.