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Finding the Fourth Proportional to 539,167.20, 808,232.40 and 419,157.60

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Solution

The fourth proportional to 539,167.20, 808,232.40 and 419,157.60 is: 628,333.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,167.20 : 808,232.40 = 419,157.60 : x
  2. Step 2: Convert to fraction form
    539,167.20/808,232.40 = 419,157.60/x
  3. Step 3: Cross multiply
    539,167.20x = 808,232.40 × 419,157.60
  4. Step 4: Simplify right side
    539,167.20x = 338,776,753,026.24
  5. Step 5: Solve for x
    x = 338,776,753,026.24/539,167.20
  6. Step 6: Final answer
    x = 628,333.39

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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.