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Finding the Fourth Proportional to 835.32, 1,152.45 and 503.49

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Solution

The fourth proportional to 835.32, 1,152.45 and 503.49 is: 694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.32 : 1,152.45 = 503.49 : x
  2. Step 2: Convert to fraction form
    835.32/1,152.45 = 503.49/x
  3. Step 3: Cross multiply
    835.32x = 1,152.45 × 503.49
  4. Step 4: Simplify right side
    835.32x = 580,247.05
  5. Step 5: Solve for x
    x = 580,247.05/835.32
  6. Step 6: Final answer
    x = 694.64

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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.