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Finding the Fourth Proportional to 645,695.52, 967,900.59 and 308,341.79

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Solution

The fourth proportional to 645,695.52, 967,900.59 and 308,341.79 is: 462,205.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,695.52 : 967,900.59 = 308,341.79 : x
  2. Step 2: Convert to fraction form
    645,695.52/967,900.59 = 308,341.79/x
  3. Step 3: Cross multiply
    645,695.52x = 967,900.59 × 308,341.79
  4. Step 4: Simplify right side
    645,695.52x = 298,444,200,462.66
  5. Step 5: Solve for x
    x = 298,444,200,462.66/645,695.52
  6. Step 6: Final answer
    x = 462,205.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.