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Finding the Fourth Proportional to 528,847.92, 791,500.68 and 434,074.80

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Solution

The fourth proportional to 528,847.92, 791,500.68 and 434,074.80 is: 649,658.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,847.92 : 791,500.68 = 434,074.80 : x
  2. Step 2: Convert to fraction form
    528,847.92/791,500.68 = 434,074.80/x
  3. Step 3: Cross multiply
    528,847.92x = 791,500.68 × 434,074.80
  4. Step 4: Simplify right side
    528,847.92x = 343,570,499,370.86
  5. Step 5: Solve for x
    x = 343,570,499,370.86/528,847.92
  6. Step 6: Final answer
    x = 649,658.41

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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.