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Finding the Fourth Proportional to 845.04, 1,267.52 and 766.72

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Solution

The fourth proportional to 845.04, 1,267.52 and 766.72 is: 1,150.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.04 : 1,267.52 = 766.72 : x
  2. Step 2: Convert to fraction form
    845.04/1,267.52 = 766.72/x
  3. Step 3: Cross multiply
    845.04x = 1,267.52 × 766.72
  4. Step 4: Simplify right side
    845.04x = 971,832.93
  5. Step 5: Solve for x
    x = 971,832.93/845.04
  6. Step 6: Final answer
    x = 1,150.04

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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.