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Finding the Fourth Proportional to 674.57, 928.73 and 525.01

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Solution

The fourth proportional to 674.57, 928.73 and 525.01 is: 722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.57 : 928.73 = 525.01 : x
  2. Step 2: Convert to fraction form
    674.57/928.73 = 525.01/x
  3. Step 3: Cross multiply
    674.57x = 928.73 × 525.01
  4. Step 4: Simplify right side
    674.57x = 487,592.54
  5. Step 5: Solve for x
    x = 487,592.54/674.57
  6. Step 6: Final answer
    x = 722.82

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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.