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Finding the Fourth Proportional to 635,642.82, 877,193.54 and 345,260.04

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Solution

The fourth proportional to 635,642.82, 877,193.54 and 345,260.04 is: 476,462.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,642.82 : 877,193.54 = 345,260.04 : x
  2. Step 2: Convert to fraction form
    635,642.82/877,193.54 = 345,260.04/x
  3. Step 3: Cross multiply
    635,642.82x = 877,193.54 × 345,260.04
  4. Step 4: Simplify right side
    635,642.82x = 302,859,874,981.84
  5. Step 5: Solve for x
    x = 302,859,874,981.84/635,642.82
  6. Step 6: Final answer
    x = 476,462.36

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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.