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Finding the Fourth Proportional to 585,618.80, 808,120.40 and 323,958.47

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Solution

The fourth proportional to 585,618.80, 808,120.40 and 323,958.47 is: 447,044.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,618.80 : 808,120.40 = 323,958.47 : x
  2. Step 2: Convert to fraction form
    585,618.80/808,120.40 = 323,958.47/x
  3. Step 3: Cross multiply
    585,618.80x = 808,120.40 × 323,958.47
  4. Step 4: Simplify right side
    585,618.80x = 261,797,442,699.39
  5. Step 5: Solve for x
    x = 261,797,442,699.39/585,618.80
  6. Step 6: Final answer
    x = 447,044.13

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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.