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Finding the Fourth Proportional to 635,963.20, 877,643.10 and 349,488.07

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Solution

The fourth proportional to 635,963.20, 877,643.10 and 349,488.07 is: 482,301.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,963.20 : 877,643.10 = 349,488.07 : x
  2. Step 2: Convert to fraction form
    635,963.20/877,643.10 = 349,488.07/x
  3. Step 3: Cross multiply
    635,963.20x = 877,643.10 × 349,488.07
  4. Step 4: Simplify right side
    635,963.20x = 306,725,790,973.71
  5. Step 5: Solve for x
    x = 306,725,790,973.71/635,963.20
  6. Step 6: Final answer
    x = 482,301.16

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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.