Home / 1,384,291.80-2,076,437.70-1,331,147.70

Finding the Fourth Proportional to 1,384,291.80, 2,076,437.70 and 1,331,147.70

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Solution

The fourth proportional to 1,384,291.80, 2,076,437.70 and 1,331,147.70 is: 1,996,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,291.80 : 2,076,437.70 = 1,331,147.70 : x
  2. Step 2: Convert to fraction form
    1,384,291.80/2,076,437.70 = 1,331,147.70/x
  3. Step 3: Cross multiply
    1,384,291.80x = 2,076,437.70 × 1,331,147.70
  4. Step 4: Simplify right side
    1,384,291.80x = 2,764,045,268,548.29
  5. Step 5: Solve for x
    x = 2,764,045,268,548.29/1,384,291.80
  6. Step 6: Final answer
    x = 1,996,721.55

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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.