Home / 3,979,529.80-5,969,294.70-1,320,137.80

Finding the Fourth Proportional to 3,979,529.80, 5,969,294.70 and 1,320,137.80

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Solution

The fourth proportional to 3,979,529.80, 5,969,294.70 and 1,320,137.80 is: 1,980,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979,529.80 : 5,969,294.70 = 1,320,137.80 : x
  2. Step 2: Convert to fraction form
    3,979,529.80/5,969,294.70 = 1,320,137.80/x
  3. Step 3: Cross multiply
    3,979,529.80x = 5,969,294.70 × 1,320,137.80
  4. Step 4: Simplify right side
    3,979,529.80x = 7,880,291,572,809.66
  5. Step 5: Solve for x
    x = 7,880,291,572,809.66/3,979,529.80
  6. Step 6: Final answer
    x = 1,980,206.70

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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.