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Finding the Fourth Proportional to 570.48, 857.68 and 554.94

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Solution

The fourth proportional to 570.48, 857.68 and 554.94 is: 834.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.48 : 857.68 = 554.94 : x
  2. Step 2: Convert to fraction form
    570.48/857.68 = 554.94/x
  3. Step 3: Cross multiply
    570.48x = 857.68 × 554.94
  4. Step 4: Simplify right side
    570.48x = 475,960.94
  5. Step 5: Solve for x
    x = 475,960.94/570.48
  6. Step 6: Final answer
    x = 834.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.