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Finding the Fourth Proportional to 635,669.22, 877,219.48 and 345,277.80

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Solution

The fourth proportional to 635,669.22, 877,219.48 and 345,277.80 is: 476,481.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,669.22 : 877,219.48 = 345,277.80 : x
  2. Step 2: Convert to fraction form
    635,669.22/877,219.48 = 345,277.80/x
  3. Step 3: Cross multiply
    635,669.22x = 877,219.48 × 345,277.80
  4. Step 4: Simplify right side
    635,669.22x = 302,884,413,501.40
  5. Step 5: Solve for x
    x = 302,884,413,501.40/635,669.22
  6. Step 6: Final answer
    x = 476,481.17

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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.