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Finding the Fourth Proportional to 912.56, 1,367.60 and 501.08

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Solution

The fourth proportional to 912.56, 1,367.60 and 501.08 is: 750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    912.56 : 1,367.60 = 501.08 : x
  2. Step 2: Convert to fraction form
    912.56/1,367.60 = 501.08/x
  3. Step 3: Cross multiply
    912.56x = 1,367.60 × 501.08
  4. Step 4: Simplify right side
    912.56x = 685,267.66
  5. Step 5: Solve for x
    x = 685,267.66/912.56
  6. Step 6: Final answer
    x = 750.93

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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.