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Finding the Fourth Proportional to 452,572.34, 678,858.50 and 115,613.74

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Solution

The fourth proportional to 452,572.34, 678,858.50 and 115,613.74 is: 173,420.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,572.34 : 678,858.50 = 115,613.74 : x
  2. Step 2: Convert to fraction form
    452,572.34/678,858.50 = 115,613.74/x
  3. Step 3: Cross multiply
    452,572.34x = 678,858.50 × 115,613.74
  4. Step 4: Simplify right side
    452,572.34x = 78,485,370,115.79
  5. Step 5: Solve for x
    x = 78,485,370,115.79/452,572.34
  6. Step 6: Final answer
    x = 173,420.61

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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.