Home / 869,650.80-1,303,828.20-449,228.40

Finding the Fourth Proportional to 869,650.80, 1,303,828.20 and 449,228.40

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Solution

The fourth proportional to 869,650.80, 1,303,828.20 and 449,228.40 is: 673,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,650.80 : 1,303,828.20 = 449,228.40 : x
  2. Step 2: Convert to fraction form
    869,650.80/1,303,828.20 = 449,228.40/x
  3. Step 3: Cross multiply
    869,650.80x = 1,303,828.20 × 449,228.40
  4. Step 4: Simplify right side
    869,650.80x = 585,716,656,160.88
  5. Step 5: Solve for x
    x = 585,716,656,160.88/869,650.80
  6. Step 6: Final answer
    x = 673,507.87

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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.