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Finding the Fourth Proportional to 635,787.36, 877,342.32 and 349,319.52

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Solution

The fourth proportional to 635,787.36, 877,342.32 and 349,319.52 is: 482,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,787.36 : 877,342.32 = 349,319.52 : x
  2. Step 2: Convert to fraction form
    635,787.36/877,342.32 = 349,319.52/x
  3. Step 3: Cross multiply
    635,787.36x = 877,342.32 × 349,319.52
  4. Step 4: Simplify right side
    635,787.36x = 306,472,798,098.09
  5. Step 5: Solve for x
    x = 306,472,798,098.09/635,787.36
  6. Step 6: Final answer
    x = 482,036.63

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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.