Home / 1,253,999.70-1,880,999.55-412,578.90

Finding the Fourth Proportional to 1,253,999.70, 1,880,999.55 and 412,578.90

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Solution

The fourth proportional to 1,253,999.70, 1,880,999.55 and 412,578.90 is: 618,868.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,999.70 : 1,880,999.55 = 412,578.90 : x
  2. Step 2: Convert to fraction form
    1,253,999.70/1,880,999.55 = 412,578.90/x
  3. Step 3: Cross multiply
    1,253,999.70x = 1,880,999.55 × 412,578.90
  4. Step 4: Simplify right side
    1,253,999.70x = 776,060,725,239.50
  5. Step 5: Solve for x
    x = 776,060,725,239.50/1,253,999.70
  6. Step 6: Final answer
    x = 618,868.35

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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.