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Finding the Fourth Proportional to 526.28, 789.16 and 454.48

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Solution

The fourth proportional to 526.28, 789.16 and 454.48 is: 681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.28 : 789.16 = 454.48 : x
  2. Step 2: Convert to fraction form
    526.28/789.16 = 454.48/x
  3. Step 3: Cross multiply
    526.28x = 789.16 × 454.48
  4. Step 4: Simplify right side
    526.28x = 358,657.44
  5. Step 5: Solve for x
    x = 358,657.44/526.28
  6. Step 6: Final answer
    x = 681.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.