Home / 2,478,208.50-3,419,986.68-1,390,560.54

Finding the Fourth Proportional to 2,478,208.50, 3,419,986.68 and 1,390,560.54

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Solution

The fourth proportional to 2,478,208.50, 3,419,986.68 and 1,390,560.54 is: 1,919,006.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478,208.50 : 3,419,986.68 = 1,390,560.54 : x
  2. Step 2: Convert to fraction form
    2,478,208.50/3,419,986.68 = 1,390,560.54/x
  3. Step 3: Cross multiply
    2,478,208.50x = 3,419,986.68 × 1,390,560.54
  4. Step 4: Simplify right side
    2,478,208.50x = 4,755,698,524,533.61
  5. Step 5: Solve for x
    x = 4,755,698,524,533.61/2,478,208.50
  6. Step 6: Final answer
    x = 1,919,006.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.