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Finding the Fourth Proportional to 705.38, 973.68 and 574.16

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Solution

The fourth proportional to 705.38, 973.68 and 574.16 is: 792.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    705.38 : 973.68 = 574.16 : x
  2. Step 2: Convert to fraction form
    705.38/973.68 = 574.16/x
  3. Step 3: Cross multiply
    705.38x = 973.68 × 574.16
  4. Step 4: Simplify right side
    705.38x = 559,048.11
  5. Step 5: Solve for x
    x = 559,048.11/705.38
  6. Step 6: Final answer
    x = 792.55

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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.