Home / 2,726,808.15-4,089,769.21-1,287,488.78

Finding the Fourth Proportional to 2,726,808.15, 4,089,769.21 and 1,287,488.78

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Solution

The fourth proportional to 2,726,808.15, 4,089,769.21 and 1,287,488.78 is: 1,931,024.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726,808.15 : 4,089,769.21 = 1,287,488.78 : x
  2. Step 2: Convert to fraction form
    2,726,808.15/4,089,769.21 = 1,287,488.78/x
  3. Step 3: Cross multiply
    2,726,808.15x = 4,089,769.21 × 1,287,488.78
  4. Step 4: Simplify right side
    2,726,808.15x = 5,265,531,970,664.46
  5. Step 5: Solve for x
    x = 5,265,531,970,664.46/2,726,808.15
  6. Step 6: Final answer
    x = 1,931,024.00

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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.