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Finding the Fourth Proportional to 496,847.20, 745,270.80 and 355,129.60

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Solution

The fourth proportional to 496,847.20, 745,270.80 and 355,129.60 is: 532,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,847.20 : 745,270.80 = 355,129.60 : x
  2. Step 2: Convert to fraction form
    496,847.20/745,270.80 = 355,129.60/x
  3. Step 3: Cross multiply
    496,847.20x = 745,270.80 × 355,129.60
  4. Step 4: Simplify right side
    496,847.20x = 264,667,721,095.68
  5. Step 5: Solve for x
    x = 264,667,721,095.68/496,847.20
  6. Step 6: Final answer
    x = 532,694.40

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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.