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Finding the Fourth Proportional to 1,186.95, 1,779.21 and 600.86

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Solution

The fourth proportional to 1,186.95, 1,779.21 and 600.86 is: 900.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186.95 : 1,779.21 = 600.86 : x
  2. Step 2: Convert to fraction form
    1,186.95/1,779.21 = 600.86/x
  3. Step 3: Cross multiply
    1,186.95x = 1,779.21 × 600.86
  4. Step 4: Simplify right side
    1,186.95x = 1,069,053.12
  5. Step 5: Solve for x
    x = 1,069,053.12/1,186.95
  6. Step 6: Final answer
    x = 900.67

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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.