Home / 809,218.60-1,213,827.90-657,003.40

Finding the Fourth Proportional to 809,218.60, 1,213,827.90 and 657,003.40

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Solution

The fourth proportional to 809,218.60, 1,213,827.90 and 657,003.40 is: 985,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,218.60 : 1,213,827.90 = 657,003.40 : x
  2. Step 2: Convert to fraction form
    809,218.60/1,213,827.90 = 657,003.40/x
  3. Step 3: Cross multiply
    809,218.60x = 1,213,827.90 × 657,003.40
  4. Step 4: Simplify right side
    809,218.60x = 797,489,057,314.86
  5. Step 5: Solve for x
    x = 797,489,057,314.86/809,218.60
  6. Step 6: Final answer
    x = 985,505.10

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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.