Home / 420,233.84-579,920.02-238,945.77

Finding the Fourth Proportional to 420,233.84, 579,920.02 and 238,945.77

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Solution

The fourth proportional to 420,233.84, 579,920.02 and 238,945.77 is: 329,743.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,233.84 : 579,920.02 = 238,945.77 : x
  2. Step 2: Convert to fraction form
    420,233.84/579,920.02 = 238,945.77/x
  3. Step 3: Cross multiply
    420,233.84x = 579,920.02 × 238,945.77
  4. Step 4: Simplify right side
    420,233.84x = 138,569,435,717.32
  5. Step 5: Solve for x
    x = 138,569,435,717.32/420,233.84
  6. Step 6: Final answer
    x = 329,743.64

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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.