Home / 1,259,858.55-1,889,787.83-780,468.15

Finding the Fourth Proportional to 1,259,858.55, 1,889,787.83 and 780,468.15

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Solution

The fourth proportional to 1,259,858.55, 1,889,787.83 and 780,468.15 is: 1,170,702.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,858.55 : 1,889,787.83 = 780,468.15 : x
  2. Step 2: Convert to fraction form
    1,259,858.55/1,889,787.83 = 780,468.15/x
  3. Step 3: Cross multiply
    1,259,858.55x = 1,889,787.83 × 780,468.15
  4. Step 4: Simplify right side
    1,259,858.55x = 1,474,919,207,670.27
  5. Step 5: Solve for x
    x = 1,474,919,207,670.27/1,259,858.55
  6. Step 6: Final answer
    x = 1,170,702.23

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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.