Home / 1,292,101.89-1,938,206.28-381,284.37

Finding the Fourth Proportional to 1,292,101.89, 1,938,206.28 and 381,284.37

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Solution

The fourth proportional to 1,292,101.89, 1,938,206.28 and 381,284.37 is: 571,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,101.89 : 1,938,206.28 = 381,284.37 : x
  2. Step 2: Convert to fraction form
    1,292,101.89/1,938,206.28 = 381,284.37/x
  3. Step 3: Cross multiply
    1,292,101.89x = 1,938,206.28 × 381,284.37
  4. Step 4: Simplify right side
    1,292,101.89x = 739,007,760,399.84
  5. Step 5: Solve for x
    x = 739,007,760,399.84/1,292,101.89
  6. Step 6: Final answer
    x = 571,942.33

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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.