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Finding the Fourth Proportional to 575.68, 794.76 and 400.72

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Solution

The fourth proportional to 575.68, 794.76 and 400.72 is: 553.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.68 : 794.76 = 400.72 : x
  2. Step 2: Convert to fraction form
    575.68/794.76 = 400.72/x
  3. Step 3: Cross multiply
    575.68x = 794.76 × 400.72
  4. Step 4: Simplify right side
    575.68x = 318,476.23
  5. Step 5: Solve for x
    x = 318,476.23/575.68
  6. Step 6: Final answer
    x = 553.22

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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.