Home / 851,437.68-1,277,156.48-220,349.64

Finding the Fourth Proportional to 851,437.68, 1,277,156.48 and 220,349.64

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Solution

The fourth proportional to 851,437.68, 1,277,156.48 and 220,349.64 is: 330,524.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,437.68 : 1,277,156.48 = 220,349.64 : x
  2. Step 2: Convert to fraction form
    851,437.68/1,277,156.48 = 220,349.64/x
  3. Step 3: Cross multiply
    851,437.68x = 1,277,156.48 × 220,349.64
  4. Step 4: Simplify right side
    851,437.68x = 281,420,970,591.67
  5. Step 5: Solve for x
    x = 281,420,970,591.67/851,437.68
  6. Step 6: Final answer
    x = 330,524.45

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Double scale
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Similar ratio
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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.