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Finding the Fourth Proportional to 587.16, 813.99 and 555.95

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Solution

The fourth proportional to 587.16, 813.99 and 555.95 is: 770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.16 : 813.99 = 555.95 : x
  2. Step 2: Convert to fraction form
    587.16/813.99 = 555.95/x
  3. Step 3: Cross multiply
    587.16x = 813.99 × 555.95
  4. Step 4: Simplify right side
    587.16x = 452,534.15
  5. Step 5: Solve for x
    x = 452,534.15/587.16
  6. Step 6: Final answer
    x = 770.72

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.