Home / 2,759,061.78-4,139,215.44-840,144.54

Finding the Fourth Proportional to 2,759,061.78, 4,139,215.44 and 840,144.54

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Solution

The fourth proportional to 2,759,061.78, 4,139,215.44 and 840,144.54 is: 1,260,406.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759,061.78 : 4,139,215.44 = 840,144.54 : x
  2. Step 2: Convert to fraction form
    2,759,061.78/4,139,215.44 = 840,144.54/x
  3. Step 3: Cross multiply
    2,759,061.78x = 4,139,215.44 × 840,144.54
  4. Step 4: Simplify right side
    2,759,061.78x = 3,477,539,251,799.70
  5. Step 5: Solve for x
    x = 3,477,539,251,799.70/2,759,061.78
  6. Step 6: Final answer
    x = 1,260,406.45

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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.