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Finding the Fourth Proportional to 526,681.58, 726,613.77 and 305,881.28

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Solution

The fourth proportional to 526,681.58, 726,613.77 and 305,881.28 is: 421,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,681.58 : 726,613.77 = 305,881.28 : x
  2. Step 2: Convert to fraction form
    526,681.58/726,613.77 = 305,881.28/x
  3. Step 3: Cross multiply
    526,681.58x = 726,613.77 × 305,881.28
  4. Step 4: Simplify right side
    526,681.58x = 222,257,548,192.93
  5. Step 5: Solve for x
    x = 222,257,548,192.93/526,681.58
  6. Step 6: Final answer
    x = 421,996.06

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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.