Home / 1,311,750.75-1,967,626.13-750,391.59

Finding the Fourth Proportional to 1,311,750.75, 1,967,626.13 and 750,391.59

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Solution

The fourth proportional to 1,311,750.75, 1,967,626.13 and 750,391.59 is: 1,125,587.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,750.75 : 1,967,626.13 = 750,391.59 : x
  2. Step 2: Convert to fraction form
    1,311,750.75/1,967,626.13 = 750,391.59/x
  3. Step 3: Cross multiply
    1,311,750.75x = 1,967,626.13 × 750,391.59
  4. Step 4: Simplify right side
    1,311,750.75x = 1,476,490,108,063.84
  5. Step 5: Solve for x
    x = 1,476,490,108,063.84/1,311,750.75
  6. Step 6: Final answer
    x = 1,125,587.39

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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.