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Finding the Fourth Proportional to 570,788.87, 787,694.42 and 344,390.63

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Solution

The fourth proportional to 570,788.87, 787,694.42 and 344,390.63 is: 475,262.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,788.87 : 787,694.42 = 344,390.63 : x
  2. Step 2: Convert to fraction form
    570,788.87/787,694.42 = 344,390.63/x
  3. Step 3: Cross multiply
    570,788.87x = 787,694.42 × 344,390.63
  4. Step 4: Simplify right side
    570,788.87x = 271,274,574,473.79
  5. Step 5: Solve for x
    x = 271,274,574,473.79/570,788.87
  6. Step 6: Final answer
    x = 475,262.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.