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Finding the Fourth Proportional to 539,740, 744,853.04 and 298,021.92

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Solution

The fourth proportional to 539,740, 744,853.04 and 298,021.92 is: 411,276.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,740 : 744,853.04 = 298,021.92 : x
  2. Step 2: Convert to fraction form
    539,740/744,853.04 = 298,021.92/x
  3. Step 3: Cross multiply
    539,740x = 744,853.04 × 298,021.92
  4. Step 4: Simplify right side
    539,740x = 221,982,533,098.64
  5. Step 5: Solve for x
    x = 221,982,533,098.64/539,740
  6. Step 6: Final answer
    x = 411,276.79

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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.