Home / 869,579.30-1,303,720.95-449,156.90

Finding the Fourth Proportional to 869,579.30, 1,303,720.95 and 449,156.90

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Solution

The fourth proportional to 869,579.30, 1,303,720.95 and 449,156.90 is: 673,400.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,579.30 : 1,303,720.95 = 449,156.90 : x
  2. Step 2: Convert to fraction form
    869,579.30/1,303,720.95 = 449,156.90/x
  3. Step 3: Cross multiply
    869,579.30x = 1,303,720.95 × 449,156.90
  4. Step 4: Simplify right side
    869,579.30x = 585,575,260,367.06
  5. Step 5: Solve for x
    x = 585,575,260,367.06/869,579.30
  6. Step 6: Final answer
    x = 673,400.64

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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.