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Finding the Fourth Proportional to 539,451.90, 808,554.56 and 387,477.27

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Solution

The fourth proportional to 539,451.90, 808,554.56 and 387,477.27 is: 580,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,451.90 : 808,554.56 = 387,477.27 : x
  2. Step 2: Convert to fraction form
    539,451.90/808,554.56 = 387,477.27/x
  3. Step 3: Cross multiply
    539,451.90x = 808,554.56 × 387,477.27
  4. Step 4: Simplify right side
    539,451.90x = 313,296,511,617.47
  5. Step 5: Solve for x
    x = 313,296,511,617.47/539,451.90
  6. Step 6: Final answer
    x = 580,768.20

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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.