Home / 1,219,641-1,831,137.24-621,004.36

Finding the Fourth Proportional to 1,219,641, 1,831,137.24 and 621,004.36

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Solution

The fourth proportional to 1,219,641, 1,831,137.24 and 621,004.36 is: 932,359.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,641 : 1,831,137.24 = 621,004.36 : x
  2. Step 2: Convert to fraction form
    1,219,641/1,831,137.24 = 621,004.36/x
  3. Step 3: Cross multiply
    1,219,641x = 1,831,137.24 × 621,004.36
  4. Step 4: Simplify right side
    1,219,641x = 1,137,144,209,798.37
  5. Step 5: Solve for x
    x = 1,137,144,209,798.37/1,219,641
  6. Step 6: Final answer
    x = 932,359.78

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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.