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Finding the Fourth Proportional to 635,641.31, 877,191.46 and 345,258.54

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Solution

The fourth proportional to 635,641.31, 877,191.46 and 345,258.54 is: 476,460.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,641.31 : 877,191.46 = 345,258.54 : x
  2. Step 2: Convert to fraction form
    635,641.31/877,191.46 = 345,258.54/x
  3. Step 3: Cross multiply
    635,641.31x = 877,191.46 × 345,258.54
  4. Step 4: Simplify right side
    635,641.31x = 302,857,841,916.92
  5. Step 5: Solve for x
    x = 302,857,841,916.92/635,641.31
  6. Step 6: Final answer
    x = 476,460.29

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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.