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Finding the Fourth Proportional to 471,567.40, 707,351.10 and 419,957.80

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Solution

The fourth proportional to 471,567.40, 707,351.10 and 419,957.80 is: 629,936.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,567.40 : 707,351.10 = 419,957.80 : x
  2. Step 2: Convert to fraction form
    471,567.40/707,351.10 = 419,957.80/x
  3. Step 3: Cross multiply
    471,567.40x = 707,351.10 × 419,957.80
  4. Step 4: Simplify right side
    471,567.40x = 297,057,611,783.58
  5. Step 5: Solve for x
    x = 297,057,611,783.58/471,567.40
  6. Step 6: Final answer
    x = 629,936.70

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Similar ratio
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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.