Home / 420,239.61-579,927.94-238,951.49

Finding the Fourth Proportional to 420,239.61, 579,927.94 and 238,951.49

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Solution

The fourth proportional to 420,239.61, 579,927.94 and 238,951.49 is: 329,751.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,239.61 : 579,927.94 = 238,951.49 : x
  2. Step 2: Convert to fraction form
    420,239.61/579,927.94 = 238,951.49/x
  3. Step 3: Cross multiply
    420,239.61x = 579,927.94 × 238,951.49
  4. Step 4: Simplify right side
    420,239.61x = 138,574,641,858.61
  5. Step 5: Solve for x
    x = 138,574,641,858.61/420,239.61
  6. Step 6: Final answer
    x = 329,751.50

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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.