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Finding the Fourth Proportional to 570.80, 787.70 and 334.89

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Solution

The fourth proportional to 570.80, 787.70 and 334.89 is: 462.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.80 : 787.70 = 334.89 : x
  2. Step 2: Convert to fraction form
    570.80/787.70 = 334.89/x
  3. Step 3: Cross multiply
    570.80x = 787.70 × 334.89
  4. Step 4: Simplify right side
    570.80x = 263,792.85
  5. Step 5: Solve for x
    x = 263,792.85/570.80
  6. Step 6: Final answer
    x = 462.15

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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.