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Finding the Fourth Proportional to 635,670, 877,224.60 and 349,194.87

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Solution

The fourth proportional to 635,670, 877,224.60 and 349,194.87 is: 481,888.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,670 : 877,224.60 = 349,194.87 : x
  2. Step 2: Convert to fraction form
    635,670/877,224.60 = 349,194.87/x
  3. Step 3: Cross multiply
    635,670x = 877,224.60 × 349,194.87
  4. Step 4: Simplify right side
    635,670x = 306,322,330,157.80
  5. Step 5: Solve for x
    x = 306,322,330,157.80/635,670
  6. Step 6: Final answer
    x = 481,888.92

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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.