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Finding the Fourth Proportional to 582.76, 875.12 and 556.76

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Solution

The fourth proportional to 582.76, 875.12 and 556.76 is: 836.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.76 : 875.12 = 556.76 : x
  2. Step 2: Convert to fraction form
    582.76/875.12 = 556.76/x
  3. Step 3: Cross multiply
    582.76x = 875.12 × 556.76
  4. Step 4: Simplify right side
    582.76x = 487,231.81
  5. Step 5: Solve for x
    x = 487,231.81/582.76
  6. Step 6: Final answer
    x = 836.08

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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.