Home / 1,289,334.81-1,931,344.71-755,236.62

Finding the Fourth Proportional to 1,289,334.81, 1,931,344.71 and 755,236.62

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Solution

The fourth proportional to 1,289,334.81, 1,931,344.71 and 755,236.62 is: 1,131,298.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,334.81 : 1,931,344.71 = 755,236.62 : x
  2. Step 2: Convert to fraction form
    1,289,334.81/1,931,344.71 = 755,236.62/x
  3. Step 3: Cross multiply
    1,289,334.81x = 1,931,344.71 × 755,236.62
  4. Step 4: Simplify right side
    1,289,334.81x = 1,458,622,250,835.28
  5. Step 5: Solve for x
    x = 1,458,622,250,835.28/1,289,334.81
  6. Step 6: Final answer
    x = 1,131,298.28

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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.