Home / 1,221,246.10-1,831,541.10-511,127.20

Finding the Fourth Proportional to 1,221,246.10, 1,831,541.10 and 511,127.20

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Solution

The fourth proportional to 1,221,246.10, 1,831,541.10 and 511,127.20 is: 766,553.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,246.10 : 1,831,541.10 = 511,127.20 : x
  2. Step 2: Convert to fraction form
    1,221,246.10/1,831,541.10 = 511,127.20/x
  3. Step 3: Cross multiply
    1,221,246.10x = 1,831,541.10 × 511,127.20
  4. Step 4: Simplify right side
    1,221,246.10x = 936,150,474,127.92
  5. Step 5: Solve for x
    x = 936,150,474,127.92/1,221,246.10
  6. Step 6: Final answer
    x = 766,553.50

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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.