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Finding the Fourth Proportional to 635,834.25, 877,061.86 and 377,535.78

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Solution

The fourth proportional to 635,834.25, 877,061.86 and 377,535.78 is: 520,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,834.25 : 877,061.86 = 377,535.78 : x
  2. Step 2: Convert to fraction form
    635,834.25/877,061.86 = 377,535.78/x
  3. Step 3: Cross multiply
    635,834.25x = 877,061.86 × 377,535.78
  4. Step 4: Simplify right side
    635,834.25x = 331,122,232,479.51
  5. Step 5: Solve for x
    x = 331,122,232,479.51/635,834.25
  6. Step 6: Final answer
    x = 520,768.16

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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.