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Finding the Fourth Proportional to 577,121.30, 865,696.80 and 273,444.20

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Solution

The fourth proportional to 577,121.30, 865,696.80 and 273,444.20 is: 410,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,121.30 : 865,696.80 = 273,444.20 : x
  2. Step 2: Convert to fraction form
    577,121.30/865,696.80 = 273,444.20/x
  3. Step 3: Cross multiply
    577,121.30x = 865,696.80 × 273,444.20
  4. Step 4: Simplify right side
    577,121.30x = 236,719,768,918.56
  5. Step 5: Solve for x
    x = 236,719,768,918.56/577,121.30
  6. Step 6: Final answer
    x = 410,173.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.