Home / 869,621.80-1,303,784.70-449,199.40

Finding the Fourth Proportional to 869,621.80, 1,303,784.70 and 449,199.40

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Solution

The fourth proportional to 869,621.80, 1,303,784.70 and 449,199.40 is: 673,464.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,621.80 : 1,303,784.70 = 449,199.40 : x
  2. Step 2: Convert to fraction form
    869,621.80/1,303,784.70 = 449,199.40/x
  3. Step 3: Cross multiply
    869,621.80x = 1,303,784.70 × 449,199.40
  4. Step 4: Simplify right side
    869,621.80x = 585,659,304,969.18
  5. Step 5: Solve for x
    x = 585,659,304,969.18/869,621.80
  6. Step 6: Final answer
    x = 673,464.38

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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.