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Finding the Fourth Proportional to 539,104.39, 806,973.81 and 397,109.77

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Solution

The fourth proportional to 539,104.39, 806,973.81 and 397,109.77 is: 594,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,104.39 : 806,973.81 = 397,109.77 : x
  2. Step 2: Convert to fraction form
    539,104.39/806,973.81 = 397,109.77/x
  3. Step 3: Cross multiply
    539,104.39x = 806,973.81 × 397,109.77
  4. Step 4: Simplify right side
    539,104.39x = 320,457,180,578.53
  5. Step 5: Solve for x
    x = 320,457,180,578.53/539,104.39
  6. Step 6: Final answer
    x = 594,425.10

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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.