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Finding the Fourth Proportional to 611.68, 913.08 and 568.96

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Solution

The fourth proportional to 611.68, 913.08 and 568.96 is: 849.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.68 : 913.08 = 568.96 : x
  2. Step 2: Convert to fraction form
    611.68/913.08 = 568.96/x
  3. Step 3: Cross multiply
    611.68x = 913.08 × 568.96
  4. Step 4: Simplify right side
    611.68x = 519,506.00
  5. Step 5: Solve for x
    x = 519,506.00/611.68
  6. Step 6: Final answer
    x = 849.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.