Home / 1,289,336.91-1,931,347.53-755,238.69

Finding the Fourth Proportional to 1,289,336.91, 1,931,347.53 and 755,238.69

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Solution

The fourth proportional to 1,289,336.91, 1,931,347.53 and 755,238.69 is: 1,131,301.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,336.91 : 1,931,347.53 = 755,238.69 : x
  2. Step 2: Convert to fraction form
    1,289,336.91/1,931,347.53 = 755,238.69/x
  3. Step 3: Cross multiply
    1,289,336.91x = 1,931,347.53 × 755,238.69
  4. Step 4: Simplify right side
    1,289,336.91x = 1,458,628,378,491.94
  5. Step 5: Solve for x
    x = 1,458,628,378,491.94/1,289,336.91
  6. Step 6: Final answer
    x = 1,131,301.19

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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.