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Finding the Fourth Proportional to 348,909.60, 523,364.40 and 331,706.40

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Solution

The fourth proportional to 348,909.60, 523,364.40 and 331,706.40 is: 497,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,909.60 : 523,364.40 = 331,706.40 : x
  2. Step 2: Convert to fraction form
    348,909.60/523,364.40 = 331,706.40/x
  3. Step 3: Cross multiply
    348,909.60x = 523,364.40 × 331,706.40
  4. Step 4: Simplify right side
    348,909.60x = 173,603,321,012.16
  5. Step 5: Solve for x
    x = 173,603,321,012.16/348,909.60
  6. Step 6: Final answer
    x = 497,559.60

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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.