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Finding the Fourth Proportional to 569.54, 785.13 and 403.24

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Solution

The fourth proportional to 569.54, 785.13 and 403.24 is: 555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.54 : 785.13 = 403.24 : x
  2. Step 2: Convert to fraction form
    569.54/785.13 = 403.24/x
  3. Step 3: Cross multiply
    569.54x = 785.13 × 403.24
  4. Step 4: Simplify right side
    569.54x = 316,595.82
  5. Step 5: Solve for x
    x = 316,595.82/569.54
  6. Step 6: Final answer
    x = 555.88

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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.