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Finding the Fourth Proportional to 912.99, 1,369.99 and 566.51

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Solution

The fourth proportional to 912.99, 1,369.99 and 566.51 is: 850.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    912.99 : 1,369.99 = 566.51 : x
  2. Step 2: Convert to fraction form
    912.99/1,369.99 = 566.51/x
  3. Step 3: Cross multiply
    912.99x = 1,369.99 × 566.51
  4. Step 4: Simplify right side
    912.99x = 776,113.03
  5. Step 5: Solve for x
    x = 776,113.03/912.99
  6. Step 6: Final answer
    x = 850.08

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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.