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Finding the Fourth Proportional to 347,780.60, 487,942.60 and 347,780.60

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Solution

The fourth proportional to 347,780.60, 487,942.60 and 347,780.60 is: 487,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,780.60 : 487,942.60 = 347,780.60 : x
  2. Step 2: Convert to fraction form
    347,780.60/487,942.60 = 347,780.60/x
  3. Step 3: Cross multiply
    347,780.60x = 487,942.60 × 347,780.60
  4. Step 4: Simplify right side
    347,780.60x = 169,696,970,193.56
  5. Step 5: Solve for x
    x = 169,696,970,193.56/347,780.60
  6. Step 6: Final answer
    x = 487,942.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.