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Finding the Fourth Proportional to 568,604.61, 784,678.16 and 310,483.35

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Solution

The fourth proportional to 568,604.61, 784,678.16 and 310,483.35 is: 428,469.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,604.61 : 784,678.16 = 310,483.35 : x
  2. Step 2: Convert to fraction form
    568,604.61/784,678.16 = 310,483.35/x
  3. Step 3: Cross multiply
    568,604.61x = 784,678.16 × 310,483.35
  4. Step 4: Simplify right side
    568,604.61x = 243,629,498,312.83
  5. Step 5: Solve for x
    x = 243,629,498,312.83/568,604.61
  6. Step 6: Final answer
    x = 428,469.09

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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.