Home / 1,261,822.30-1,889,623.05-838,807.90

Finding the Fourth Proportional to 1,261,822.30, 1,889,623.05 and 838,807.90

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Solution

The fourth proportional to 1,261,822.30, 1,889,623.05 and 838,807.90 is: 1,256,144.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,822.30 : 1,889,623.05 = 838,807.90 : x
  2. Step 2: Convert to fraction form
    1,261,822.30/1,889,623.05 = 838,807.90/x
  3. Step 3: Cross multiply
    1,261,822.30x = 1,889,623.05 × 838,807.90
  4. Step 4: Simplify right side
    1,261,822.30x = 1,585,030,742,362.10
  5. Step 5: Solve for x
    x = 1,585,030,742,362.10/1,261,822.30
  6. Step 6: Final answer
    x = 1,256,144.18

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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.