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Finding the Fourth Proportional to 635,642.07, 877,192.50 and 345,259.29

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Solution

The fourth proportional to 635,642.07, 877,192.50 and 345,259.29 is: 476,461.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,642.07 : 877,192.50 = 345,259.29 : x
  2. Step 2: Convert to fraction form
    635,642.07/877,192.50 = 345,259.29/x
  3. Step 3: Cross multiply
    635,642.07x = 877,192.50 × 345,259.29
  4. Step 4: Simplify right side
    635,642.07x = 302,858,859,743.33
  5. Step 5: Solve for x
    x = 302,858,859,743.33/635,642.07
  6. Step 6: Final answer
    x = 476,461.32

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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.