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Finding the Fourth Proportional to 587.50, 875.04 and 556.66

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Solution

The fourth proportional to 587.50, 875.04 and 556.66 is: 829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.50 : 875.04 = 556.66 : x
  2. Step 2: Convert to fraction form
    587.50/875.04 = 556.66/x
  3. Step 3: Cross multiply
    587.50x = 875.04 × 556.66
  4. Step 4: Simplify right side
    587.50x = 487,099.77
  5. Step 5: Solve for x
    x = 487,099.77/587.50
  6. Step 6: Final answer
    x = 829.11

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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.