Home / 809,469.22-1,117,445.50-469,872.10

Finding the Fourth Proportional to 809,469.22, 1,117,445.50 and 469,872.10

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Solution

The fourth proportional to 809,469.22, 1,117,445.50 and 469,872.10 is: 648,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,469.22 : 1,117,445.50 = 469,872.10 : x
  2. Step 2: Convert to fraction form
    809,469.22/1,117,445.50 = 469,872.10/x
  3. Step 3: Cross multiply
    809,469.22x = 1,117,445.50 × 469,872.10
  4. Step 4: Simplify right side
    809,469.22x = 525,056,463,720.55
  5. Step 5: Solve for x
    x = 525,056,463,720.55/809,469.22
  6. Step 6: Final answer
    x = 648,642.90

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1.5x scale

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.