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Finding the Fourth Proportional to 579,131.09, 798,930.59 and 364,389.56

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Solution

The fourth proportional to 579,131.09, 798,930.59 and 364,389.56 is: 502,687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,131.09 : 798,930.59 = 364,389.56 : x
  2. Step 2: Convert to fraction form
    579,131.09/798,930.59 = 364,389.56/x
  3. Step 3: Cross multiply
    579,131.09x = 798,930.59 × 364,389.56
  4. Step 4: Simplify right side
    579,131.09x = 291,121,960,344.04
  5. Step 5: Solve for x
    x = 291,121,960,344.04/579,131.09
  6. Step 6: Final answer
    x = 502,687.51

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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.