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Finding the Fourth Proportional to 673.36, 928.68 and 568.69

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Solution

The fourth proportional to 673.36, 928.68 and 568.69 is: 784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.36 : 928.68 = 568.69 : x
  2. Step 2: Convert to fraction form
    673.36/928.68 = 568.69/x
  3. Step 3: Cross multiply
    673.36x = 928.68 × 568.69
  4. Step 4: Simplify right side
    673.36x = 528,131.03
  5. Step 5: Solve for x
    x = 528,131.03/673.36
  6. Step 6: Final answer
    x = 784.32

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.