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Finding the Fourth Proportional to 571,613.22, 788,891.27 and 329,960.66

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Solution

The fourth proportional to 571,613.22, 788,891.27 and 329,960.66 is: 455,383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,613.22 : 788,891.27 = 329,960.66 : x
  2. Step 2: Convert to fraction form
    571,613.22/788,891.27 = 329,960.66/x
  3. Step 3: Cross multiply
    571,613.22x = 788,891.27 × 329,960.66
  4. Step 4: Simplify right side
    571,613.22x = 260,303,078,523.18
  5. Step 5: Solve for x
    x = 260,303,078,523.18/571,613.22
  6. Step 6: Final answer
    x = 455,383.24

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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.