Home / 1,331,811.84-1,837,907.40-728,199.84

Finding the Fourth Proportional to 1,331,811.84, 1,837,907.40 and 728,199.84

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Solution

The fourth proportional to 1,331,811.84, 1,837,907.40 and 728,199.84 is: 1,004,919.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,811.84 : 1,837,907.40 = 728,199.84 : x
  2. Step 2: Convert to fraction form
    1,331,811.84/1,837,907.40 = 728,199.84/x
  3. Step 3: Cross multiply
    1,331,811.84x = 1,837,907.40 × 728,199.84
  4. Step 4: Simplify right side
    1,331,811.84x = 1,338,363,874,614.82
  5. Step 5: Solve for x
    x = 1,338,363,874,614.82/1,331,811.84
  6. Step 6: Final answer
    x = 1,004,919.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.