Home / 1,222,641.80-1,831,576.92-800,638.28

Finding the Fourth Proportional to 1,222,641.80, 1,831,576.92 and 800,638.28

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Solution

The fourth proportional to 1,222,641.80, 1,831,576.92 and 800,638.28 is: 1,199,395.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,641.80 : 1,831,576.92 = 800,638.28 : x
  2. Step 2: Convert to fraction form
    1,222,641.80/1,831,576.92 = 800,638.28/x
  3. Step 3: Cross multiply
    1,222,641.80x = 1,831,576.92 × 800,638.28
  4. Step 4: Simplify right side
    1,222,641.80x = 1,466,430,594,916.50
  5. Step 5: Solve for x
    x = 1,466,430,594,916.50/1,222,641.80
  6. Step 6: Final answer
    x = 1,199,395.11

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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.