Home / 1,281,057.44-1,767,678.60-729,787.64

Finding the Fourth Proportional to 1,281,057.44, 1,767,678.60 and 729,787.64

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Solution

The fourth proportional to 1,281,057.44, 1,767,678.60 and 729,787.64 is: 1,007,004.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,057.44 : 1,767,678.60 = 729,787.64 : x
  2. Step 2: Convert to fraction form
    1,281,057.44/1,767,678.60 = 729,787.64/x
  3. Step 3: Cross multiply
    1,281,057.44x = 1,767,678.60 × 729,787.64
  4. Step 4: Simplify right side
    1,281,057.44x = 1,290,029,993,772.50
  5. Step 5: Solve for x
    x = 1,290,029,993,772.50/1,281,057.44
  6. Step 6: Final answer
    x = 1,007,004.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.