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Finding the Fourth Proportional to 635,954.70, 877,426.11 and 381,212.94

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Solution

The fourth proportional to 635,954.70, 877,426.11 and 381,212.94 is: 525,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,954.70 : 877,426.11 = 381,212.94 : x
  2. Step 2: Convert to fraction form
    635,954.70/877,426.11 = 381,212.94/x
  3. Step 3: Cross multiply
    635,954.70x = 877,426.11 × 381,212.94
  4. Step 4: Simplify right side
    635,954.70x = 334,486,187,025.86
  5. Step 5: Solve for x
    x = 334,486,187,025.86/635,954.70
  6. Step 6: Final answer
    x = 525,959.14

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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.