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Finding the Fourth Proportional to 575.37, 857.48 and 556.92

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Solution

The fourth proportional to 575.37, 857.48 and 556.92 is: 829.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.37 : 857.48 = 556.92 : x
  2. Step 2: Convert to fraction form
    575.37/857.48 = 556.92/x
  3. Step 3: Cross multiply
    575.37x = 857.48 × 556.92
  4. Step 4: Simplify right side
    575.37x = 477,544.98
  5. Step 5: Solve for x
    x = 477,544.98/575.37
  6. Step 6: Final answer
    x = 829.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.