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Finding the Fourth Proportional to 557.04, 836.64 and 471.12

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Solution

The fourth proportional to 557.04, 836.64 and 471.12 is: 707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.04 : 836.64 = 471.12 : x
  2. Step 2: Convert to fraction form
    557.04/836.64 = 471.12/x
  3. Step 3: Cross multiply
    557.04x = 836.64 × 471.12
  4. Step 4: Simplify right side
    557.04x = 394,157.84
  5. Step 5: Solve for x
    x = 394,157.84/557.04
  6. Step 6: Final answer
    x = 707.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.