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Finding the Fourth Proportional to 635,537.71, 877,039.05 and 345,147.25

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Solution

The fourth proportional to 635,537.71, 877,039.05 and 345,147.25 is: 476,301.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,537.71 : 877,039.05 = 345,147.25 : x
  2. Step 2: Convert to fraction form
    635,537.71/877,039.05 = 345,147.25/x
  3. Step 3: Cross multiply
    635,537.71x = 877,039.05 × 345,147.25
  4. Step 4: Simplify right side
    635,537.71x = 302,707,616,250.11
  5. Step 5: Solve for x
    x = 302,707,616,250.11/635,537.71
  6. Step 6: Final answer
    x = 476,301.58

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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.