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Finding the Fourth Proportional to 423,894.82, 635,940.71 and 124,363.30

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Solution

The fourth proportional to 423,894.82, 635,940.71 and 124,363.30 is: 186,573.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,894.82 : 635,940.71 = 124,363.30 : x
  2. Step 2: Convert to fraction form
    423,894.82/635,940.71 = 124,363.30/x
  3. Step 3: Cross multiply
    423,894.82x = 635,940.71 × 124,363.30
  4. Step 4: Simplify right side
    423,894.82x = 79,087,685,299.94
  5. Step 5: Solve for x
    x = 79,087,685,299.94/423,894.82
  6. Step 6: Final answer
    x = 186,573.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.