Home / 1,399,112.99-2,098,434.72-388,337.64

Finding the Fourth Proportional to 1,399,112.99, 2,098,434.72 and 388,337.64

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Solution

The fourth proportional to 1,399,112.99, 2,098,434.72 and 388,337.64 is: 582,441.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,112.99 : 2,098,434.72 = 388,337.64 : x
  2. Step 2: Convert to fraction form
    1,399,112.99/2,098,434.72 = 388,337.64/x
  3. Step 3: Cross multiply
    1,399,112.99x = 2,098,434.72 × 388,337.64
  4. Step 4: Simplify right side
    1,399,112.99x = 814,901,186,858.86
  5. Step 5: Solve for x
    x = 814,901,186,858.86/1,399,112.99
  6. Step 6: Final answer
    x = 582,441.30

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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.