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Finding the Fourth Proportional to 347,394.96, 520,520.04 and 318,342.96

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Solution

The fourth proportional to 347,394.96, 520,520.04 and 318,342.96 is: 476,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,394.96 : 520,520.04 = 318,342.96 : x
  2. Step 2: Convert to fraction form
    347,394.96/520,520.04 = 318,342.96/x
  3. Step 3: Cross multiply
    347,394.96x = 520,520.04 × 318,342.96
  4. Step 4: Simplify right side
    347,394.96x = 165,703,890,272.92
  5. Step 5: Solve for x
    x = 165,703,890,272.92/347,394.96
  6. Step 6: Final answer
    x = 476,989.91

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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.