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Finding the Fourth Proportional to 568,698.52, 784,804.26 and 310,579

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Solution

The fourth proportional to 568,698.52, 784,804.26 and 310,579 is: 428,599.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,698.52 : 784,804.26 = 310,579 : x
  2. Step 2: Convert to fraction form
    568,698.52/784,804.26 = 310,579/x
  3. Step 3: Cross multiply
    568,698.52x = 784,804.26 × 310,579
  4. Step 4: Simplify right side
    568,698.52x = 243,743,722,266.54
  5. Step 5: Solve for x
    x = 243,743,722,266.54/568,698.52
  6. Step 6: Final answer
    x = 428,599.19

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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.