Home / 3,517,047.20-5,277,320.40-1,387,200.80

Finding the Fourth Proportional to 3,517,047.20, 5,277,320.40 and 1,387,200.80

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Solution

The fourth proportional to 3,517,047.20, 5,277,320.40 and 1,387,200.80 is: 2,081,491.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517,047.20 : 5,277,320.40 = 1,387,200.80 : x
  2. Step 2: Convert to fraction form
    3,517,047.20/5,277,320.40 = 1,387,200.80/x
  3. Step 3: Cross multiply
    3,517,047.20x = 5,277,320.40 × 1,387,200.80
  4. Step 4: Simplify right side
    3,517,047.20x = 7,320,703,080,736.32
  5. Step 5: Solve for x
    x = 7,320,703,080,736.32/3,517,047.20
  6. Step 6: Final answer
    x = 2,081,491.28

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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.