Home / 1,599,989.13-2,399,983.83-640,880.28

Finding the Fourth Proportional to 1,599,989.13, 2,399,983.83 and 640,880.28

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Solution

The fourth proportional to 1,599,989.13, 2,399,983.83 and 640,880.28 is: 961,320.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,599,989.13 : 2,399,983.83 = 640,880.28 : x
  2. Step 2: Convert to fraction form
    1,599,989.13/2,399,983.83 = 640,880.28/x
  3. Step 3: Cross multiply
    1,599,989.13x = 2,399,983.83 × 640,880.28
  4. Step 4: Simplify right side
    1,599,989.13x = 1,538,102,308,965.87
  5. Step 5: Solve for x
    x = 1,538,102,308,965.87/1,599,989.13
  6. Step 6: Final answer
    x = 961,320.47

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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.