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Finding the Fourth Proportional to 573.48, 790.44 and 448.92

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Solution

The fourth proportional to 573.48, 790.44 and 448.92 is: 618.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.48 : 790.44 = 448.92 : x
  2. Step 2: Convert to fraction form
    573.48/790.44 = 448.92/x
  3. Step 3: Cross multiply
    573.48x = 790.44 × 448.92
  4. Step 4: Simplify right side
    573.48x = 354,844.32
  5. Step 5: Solve for x
    x = 354,844.32/573.48
  6. Step 6: Final answer
    x = 618.76

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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.