Home / 1,292,099.88-1,938,203.26-381,282.36

Finding the Fourth Proportional to 1,292,099.88, 1,938,203.26 and 381,282.36

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Solution

The fourth proportional to 1,292,099.88, 1,938,203.26 and 381,282.36 is: 571,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,099.88 : 1,938,203.26 = 381,282.36 : x
  2. Step 2: Convert to fraction form
    1,292,099.88/1,938,203.26 = 381,282.36/x
  3. Step 3: Cross multiply
    1,292,099.88x = 1,938,203.26 × 381,282.36
  4. Step 4: Simplify right side
    1,292,099.88x = 739,002,704,911.03
  5. Step 5: Solve for x
    x = 739,002,704,911.03/1,292,099.88
  6. Step 6: Final answer
    x = 571,939.30

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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.