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Finding the Fourth Proportional to 539,458.70, 744,451.46 and 297,739.53

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Solution

The fourth proportional to 539,458.70, 744,451.46 and 297,739.53 is: 410,879.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,458.70 : 744,451.46 = 297,739.53 : x
  2. Step 2: Convert to fraction form
    539,458.70/744,451.46 = 297,739.53/x
  3. Step 3: Cross multiply
    539,458.70x = 744,451.46 × 297,739.53
  4. Step 4: Simplify right side
    539,458.70x = 221,652,630,367.20
  5. Step 5: Solve for x
    x = 221,652,630,367.20/539,458.70
  6. Step 6: Final answer
    x = 410,879.71

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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.