Home / 1,986,901.41-2,980,796.55-724,729.05

Finding the Fourth Proportional to 1,986,901.41, 2,980,796.55 and 724,729.05

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Solution

The fourth proportional to 1,986,901.41, 2,980,796.55 and 724,729.05 is: 1,087,255.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,901.41 : 2,980,796.55 = 724,729.05 : x
  2. Step 2: Convert to fraction form
    1,986,901.41/2,980,796.55 = 724,729.05/x
  3. Step 3: Cross multiply
    1,986,901.41x = 2,980,796.55 × 724,729.05
  4. Step 4: Simplify right side
    1,986,901.41x = 2,160,269,851,924.78
  5. Step 5: Solve for x
    x = 2,160,269,851,924.78/1,986,901.41
  6. Step 6: Final answer
    x = 1,087,255.68

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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.