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Finding the Fourth Proportional to 705.33, 973.36 and 406.51

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Solution

The fourth proportional to 705.33, 973.36 and 406.51 is: 560.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    705.33 : 973.36 = 406.51 : x
  2. Step 2: Convert to fraction form
    705.33/973.36 = 406.51/x
  3. Step 3: Cross multiply
    705.33x = 973.36 × 406.51
  4. Step 4: Simplify right side
    705.33x = 395,680.57
  5. Step 5: Solve for x
    x = 395,680.57/705.33
  6. Step 6: Final answer
    x = 560.99

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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.