Home / 1,399,109.24-2,098,429.08-388,333.88

Finding the Fourth Proportional to 1,399,109.24, 2,098,429.08 and 388,333.88

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Solution

The fourth proportional to 1,399,109.24, 2,098,429.08 and 388,333.88 is: 582,435.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,109.24 : 2,098,429.08 = 388,333.88 : x
  2. Step 2: Convert to fraction form
    1,399,109.24/2,098,429.08 = 388,333.88/x
  3. Step 3: Cross multiply
    1,399,109.24x = 2,098,429.08 × 388,333.88
  4. Step 4: Simplify right side
    1,399,109.24x = 814,891,106,541.23
  5. Step 5: Solve for x
    x = 814,891,106,541.23/1,399,109.24
  6. Step 6: Final answer
    x = 582,435.65

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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.