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Finding the Fourth Proportional to 419,376.40, 629,051.22 and 249,761.58

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Solution

The fourth proportional to 419,376.40, 629,051.22 and 249,761.58 is: 374,634.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,376.40 : 629,051.22 = 249,761.58 : x
  2. Step 2: Convert to fraction form
    419,376.40/629,051.22 = 249,761.58/x
  3. Step 3: Cross multiply
    419,376.40x = 629,051.22 × 249,761.58
  4. Step 4: Simplify right side
    419,376.40x = 157,112,826,608.13
  5. Step 5: Solve for x
    x = 157,112,826,608.13/419,376.40
  6. Step 6: Final answer
    x = 374,634.40

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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.