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Finding the Fourth Proportional to 766.86, 1,058.44 and 568.02

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Solution

The fourth proportional to 766.86, 1,058.44 and 568.02 is: 784.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    766.86 : 1,058.44 = 568.02 : x
  2. Step 2: Convert to fraction form
    766.86/1,058.44 = 568.02/x
  3. Step 3: Cross multiply
    766.86x = 1,058.44 × 568.02
  4. Step 4: Simplify right side
    766.86x = 601,215.09
  5. Step 5: Solve for x
    x = 601,215.09/766.86
  6. Step 6: Final answer
    x = 784.00

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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.