Home / 869,623.80-1,303,787.70-449,201.40

Finding the Fourth Proportional to 869,623.80, 1,303,787.70 and 449,201.40

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Solution

The fourth proportional to 869,623.80, 1,303,787.70 and 449,201.40 is: 673,467.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,623.80 : 1,303,787.70 = 449,201.40 : x
  2. Step 2: Convert to fraction form
    869,623.80/1,303,787.70 = 449,201.40/x
  3. Step 3: Cross multiply
    869,623.80x = 1,303,787.70 × 449,201.40
  4. Step 4: Simplify right side
    869,623.80x = 585,663,260,142.78
  5. Step 5: Solve for x
    x = 585,663,260,142.78/869,623.80
  6. Step 6: Final answer
    x = 673,467.38

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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.