Home / 2,619,925-3,929,886.78-726,666.64

Finding the Fourth Proportional to 2,619,925, 3,929,886.78 and 726,666.64

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Solution

The fourth proportional to 2,619,925, 3,929,886.78 and 726,666.64 is: 1,089,999.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619,925 : 3,929,886.78 = 726,666.64 : x
  2. Step 2: Convert to fraction form
    2,619,925/3,929,886.78 = 726,666.64/x
  3. Step 3: Cross multiply
    2,619,925x = 3,929,886.78 × 726,666.64
  4. Step 4: Simplify right side
    2,619,925x = 2,855,717,622,003.02
  5. Step 5: Solve for x
    x = 2,855,717,622,003.02/2,619,925
  6. Step 6: Final answer
    x = 1,089,999.76

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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.