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Finding the Fourth Proportional to 568,485.72, 784,794.42 and 353,695.32

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Solution

The fourth proportional to 568,485.72, 784,794.42 and 353,695.32 is: 488,276.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,485.72 : 784,794.42 = 353,695.32 : x
  2. Step 2: Convert to fraction form
    568,485.72/784,794.42 = 353,695.32/x
  3. Step 3: Cross multiply
    568,485.72x = 784,794.42 × 353,695.32
  4. Step 4: Simplify right side
    568,485.72x = 277,578,113,516.11
  5. Step 5: Solve for x
    x = 277,578,113,516.11/568,485.72
  6. Step 6: Final answer
    x = 488,276.32

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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.