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Finding the Fourth Proportional to 671.74, 928.56 and 567.41

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Solution

The fourth proportional to 671.74, 928.56 and 567.41 is: 784.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.74 : 928.56 = 567.41 : x
  2. Step 2: Convert to fraction form
    671.74/928.56 = 567.41/x
  3. Step 3: Cross multiply
    671.74x = 928.56 × 567.41
  4. Step 4: Simplify right side
    671.74x = 526,871.71
  5. Step 5: Solve for x
    x = 526,871.71/671.74
  6. Step 6: Final answer
    x = 784.34

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Double scale
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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.