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Finding the Fourth Proportional to 452,408.96, 678,613.01 and 115,449.60

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Solution

The fourth proportional to 452,408.96, 678,613.01 and 115,449.60 is: 173,174.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,408.96 : 678,613.01 = 115,449.60 : x
  2. Step 2: Convert to fraction form
    452,408.96/678,613.01 = 115,449.60/x
  3. Step 3: Cross multiply
    452,408.96x = 678,613.01 × 115,449.60
  4. Step 4: Simplify right side
    452,408.96x = 78,345,602,526.85
  5. Step 5: Solve for x
    x = 78,345,602,526.85/452,408.96
  6. Step 6: Final answer
    x = 173,174.29

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1.5x scale

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.