Home / 2,318,669.20-3,478,003.80-612,809.20

Finding the Fourth Proportional to 2,318,669.20, 3,478,003.80 and 612,809.20

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Solution

The fourth proportional to 2,318,669.20, 3,478,003.80 and 612,809.20 is: 919,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318,669.20 : 3,478,003.80 = 612,809.20 : x
  2. Step 2: Convert to fraction form
    2,318,669.20/3,478,003.80 = 612,809.20/x
  3. Step 3: Cross multiply
    2,318,669.20x = 3,478,003.80 × 612,809.20
  4. Step 4: Simplify right side
    2,318,669.20x = 2,131,352,726,274.96
  5. Step 5: Solve for x
    x = 2,131,352,726,274.96/2,318,669.20
  6. Step 6: Final answer
    x = 919,213.80

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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.