Home / 1,493,304.78-2,240,069.49-428,338.38

Finding the Fourth Proportional to 1,493,304.78, 2,240,069.49 and 428,338.38

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Solution

The fourth proportional to 1,493,304.78, 2,240,069.49 and 428,338.38 is: 642,539.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493,304.78 : 2,240,069.49 = 428,338.38 : x
  2. Step 2: Convert to fraction form
    1,493,304.78/2,240,069.49 = 428,338.38/x
  3. Step 3: Cross multiply
    1,493,304.78x = 2,240,069.49 × 428,338.38
  4. Step 4: Simplify right side
    1,493,304.78x = 959,507,736,434.03
  5. Step 5: Solve for x
    x = 959,507,736,434.03/1,493,304.78
  6. Step 6: Final answer
    x = 642,539.79

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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.