Home / 1,289,304.91-1,931,299.53-755,206.69

Finding the Fourth Proportional to 1,289,304.91, 1,931,299.53 and 755,206.69

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Solution

The fourth proportional to 1,289,304.91, 1,931,299.53 and 755,206.69 is: 1,131,253.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,304.91 : 1,931,299.53 = 755,206.69 : x
  2. Step 2: Convert to fraction form
    1,289,304.91/1,931,299.53 = 755,206.69/x
  3. Step 3: Cross multiply
    1,289,304.91x = 1,931,299.53 × 755,206.69
  4. Step 4: Simplify right side
    1,289,304.91x = 1,458,530,325,449.86
  5. Step 5: Solve for x
    x = 1,458,530,325,449.86/1,289,304.91
  6. Step 6: Final answer
    x = 1,131,253.22

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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.