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Finding the Fourth Proportional to 605.80, 910.48 and 503.76

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Solution

The fourth proportional to 605.80, 910.48 and 503.76 is: 757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.80 : 910.48 = 503.76 : x
  2. Step 2: Convert to fraction form
    605.80/910.48 = 503.76/x
  3. Step 3: Cross multiply
    605.80x = 910.48 × 503.76
  4. Step 4: Simplify right side
    605.80x = 458,663.40
  5. Step 5: Solve for x
    x = 458,663.40/605.80
  6. Step 6: Final answer
    x = 757.12

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