Home / 1,289,227.78-1,931,184.46-755,129.58

Finding the Fourth Proportional to 1,289,227.78, 1,931,184.46 and 755,129.58

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Solution

The fourth proportional to 1,289,227.78, 1,931,184.46 and 755,129.58 is: 1,131,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,227.78 : 1,931,184.46 = 755,129.58 : x
  2. Step 2: Convert to fraction form
    1,289,227.78/1,931,184.46 = 755,129.58/x
  3. Step 3: Cross multiply
    1,289,227.78x = 1,931,184.46 × 755,129.58
  4. Step 4: Simplify right side
    1,289,227.78x = 1,458,294,510,182.33
  5. Step 5: Solve for x
    x = 1,458,294,510,182.33/1,289,227.78
  6. Step 6: Final answer
    x = 1,131,137.98

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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.