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Finding the Fourth Proportional to 914.55, 1,262.07 and 565.17

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Solution

The fourth proportional to 914.55, 1,262.07 and 565.17 is: 779.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.55 : 1,262.07 = 565.17 : x
  2. Step 2: Convert to fraction form
    914.55/1,262.07 = 565.17/x
  3. Step 3: Cross multiply
    914.55x = 1,262.07 × 565.17
  4. Step 4: Simplify right side
    914.55x = 713,284.10
  5. Step 5: Solve for x
    x = 713,284.10/914.55
  6. Step 6: Final answer
    x = 779.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.