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Finding the Fourth Proportional to 835.39, 1,152.73 and 520.67

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Solution

The fourth proportional to 835.39, 1,152.73 and 520.67 is: 718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.39 : 1,152.73 = 520.67 : x
  2. Step 2: Convert to fraction form
    835.39/1,152.73 = 520.67/x
  3. Step 3: Cross multiply
    835.39x = 1,152.73 × 520.67
  4. Step 4: Simplify right side
    835.39x = 600,191.93
  5. Step 5: Solve for x
    x = 600,191.93/835.39
  6. Step 6: Final answer
    x = 718.46

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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.