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Finding the Fourth Proportional to 834.28, 1,252.18 and 526.68

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Solution

The fourth proportional to 834.28, 1,252.18 and 526.68 is: 790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.28 : 1,252.18 = 526.68 : x
  2. Step 2: Convert to fraction form
    834.28/1,252.18 = 526.68/x
  3. Step 3: Cross multiply
    834.28x = 1,252.18 × 526.68
  4. Step 4: Simplify right side
    834.28x = 659,498.16
  5. Step 5: Solve for x
    x = 659,498.16/834.28
  6. Step 6: Final answer
    x = 790.50

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Double scale
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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.