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Finding the Fourth Proportional to 557,660.70, 769,574.52 and 328,226.58

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Solution

The fourth proportional to 557,660.70, 769,574.52 and 328,226.58 is: 452,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,660.70 : 769,574.52 = 328,226.58 : x
  2. Step 2: Convert to fraction form
    557,660.70/769,574.52 = 328,226.58/x
  3. Step 3: Cross multiply
    557,660.70x = 769,574.52 × 328,226.58
  4. Step 4: Simplify right side
    557,660.70x = 252,594,812,754.74
  5. Step 5: Solve for x
    x = 252,594,812,754.74/557,660.70
  6. Step 6: Final answer
    x = 452,954.30

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