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Finding the Fourth Proportional to 573.29, 790.92 and 440.62

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Solution

The fourth proportional to 573.29, 790.92 and 440.62 is: 607.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.29 : 790.92 = 440.62 : x
  2. Step 2: Convert to fraction form
    573.29/790.92 = 440.62/x
  3. Step 3: Cross multiply
    573.29x = 790.92 × 440.62
  4. Step 4: Simplify right side
    573.29x = 348,495.17
  5. Step 5: Solve for x
    x = 348,495.17/573.29
  6. Step 6: Final answer
    x = 607.89

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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.