Home / 1,289,338.94-1,931,350.50-755,240.72

Finding the Fourth Proportional to 1,289,338.94, 1,931,350.50 and 755,240.72

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Solution

The fourth proportional to 1,289,338.94, 1,931,350.50 and 755,240.72 is: 1,131,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,338.94 : 1,931,350.50 = 755,240.72 : x
  2. Step 2: Convert to fraction form
    1,289,338.94/1,931,350.50 = 755,240.72/x
  3. Step 3: Cross multiply
    1,289,338.94x = 1,931,350.50 × 755,240.72
  4. Step 4: Simplify right side
    1,289,338.94x = 1,458,634,542,192.36
  5. Step 5: Solve for x
    x = 1,458,634,542,192.36/1,289,338.94
  6. Step 6: Final answer
    x = 1,131,304.19

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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.