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Finding the Fourth Proportional to 705.78, 973.80 and 410.94

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Solution

The fourth proportional to 705.78, 973.80 and 410.94 is: 566.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    705.78 : 973.80 = 410.94 : x
  2. Step 2: Convert to fraction form
    705.78/973.80 = 410.94/x
  3. Step 3: Cross multiply
    705.78x = 973.80 × 410.94
  4. Step 4: Simplify right side
    705.78x = 400,173.37
  5. Step 5: Solve for x
    x = 400,173.37/705.78
  6. Step 6: Final answer
    x = 566.99

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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.