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Finding the Fourth Proportional to 539,977.74, 745,105.41 and 298,245.90

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Solution

The fourth proportional to 539,977.74, 745,105.41 and 298,245.90 is: 411,544.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,977.74 : 745,105.41 = 298,245.90 : x
  2. Step 2: Convert to fraction form
    539,977.74/745,105.41 = 298,245.90/x
  3. Step 3: Cross multiply
    539,977.74x = 745,105.41 × 298,245.90
  4. Step 4: Simplify right side
    539,977.74x = 222,224,633,600.32
  5. Step 5: Solve for x
    x = 222,224,633,600.32/539,977.74
  6. Step 6: Final answer
    x = 411,544.06

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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.