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Finding the Fourth Proportional to 539,193, 744,086.34 and 300,729

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Solution

The fourth proportional to 539,193, 744,086.34 and 300,729 is: 415,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,193 : 744,086.34 = 300,729 : x
  2. Step 2: Convert to fraction form
    539,193/744,086.34 = 300,729/x
  3. Step 3: Cross multiply
    539,193x = 744,086.34 × 300,729
  4. Step 4: Simplify right side
    539,193x = 223,768,340,941.86
  5. Step 5: Solve for x
    x = 223,768,340,941.86/539,193
  6. Step 6: Final answer
    x = 415,006.02

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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.