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Finding the Fourth Proportional to 570.46, 787.26 and 374.35

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Solution

The fourth proportional to 570.46, 787.26 and 374.35 is: 516.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.46 : 787.26 = 374.35 : x
  2. Step 2: Convert to fraction form
    570.46/787.26 = 374.35/x
  3. Step 3: Cross multiply
    570.46x = 787.26 × 374.35
  4. Step 4: Simplify right side
    570.46x = 294,710.78
  5. Step 5: Solve for x
    x = 294,710.78/570.46
  6. Step 6: Final answer
    x = 516.62

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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.