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Finding the Fourth Proportional to 496,108.80, 744,163.20 and 285,573.60

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Solution

The fourth proportional to 496,108.80, 744,163.20 and 285,573.60 is: 428,360.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,108.80 : 744,163.20 = 285,573.60 : x
  2. Step 2: Convert to fraction form
    496,108.80/744,163.20 = 285,573.60/x
  3. Step 3: Cross multiply
    496,108.80x = 744,163.20 × 285,573.60
  4. Step 4: Simplify right side
    496,108.80x = 212,513,364,011.52
  5. Step 5: Solve for x
    x = 212,513,364,011.52/496,108.80
  6. Step 6: Final answer
    x = 428,360.40

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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.