Home / 1,219,261.08-1,821,475.89-789,294.14

Finding the Fourth Proportional to 1,219,261.08, 1,821,475.89 and 789,294.14

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Solution

The fourth proportional to 1,219,261.08, 1,821,475.89 and 789,294.14 is: 1,179,140.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,261.08 : 1,821,475.89 = 789,294.14 : x
  2. Step 2: Convert to fraction form
    1,219,261.08/1,821,475.89 = 789,294.14/x
  3. Step 3: Cross multiply
    1,219,261.08x = 1,821,475.89 × 789,294.14
  4. Step 4: Simplify right side
    1,219,261.08x = 1,437,680,253,641.83
  5. Step 5: Solve for x
    x = 1,437,680,253,641.83/1,219,261.08
  6. Step 6: Final answer
    x = 1,179,140.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.