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Finding the Fourth Proportional to 568,585.88, 784,664.67 and 310,479.23

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Solution

The fourth proportional to 568,585.88, 784,664.67 and 310,479.23 is: 428,470.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,585.88 : 784,664.67 = 310,479.23 : x
  2. Step 2: Convert to fraction form
    568,585.88/784,664.67 = 310,479.23/x
  3. Step 3: Cross multiply
    568,585.88x = 784,664.67 × 310,479.23
  4. Step 4: Simplify right side
    568,585.88x = 243,622,079,515.58
  5. Step 5: Solve for x
    x = 243,622,079,515.58/568,585.88
  6. Step 6: Final answer
    x = 428,470.15

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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.