Home / 806,456.57-1,112,901.27-443,872.64

Finding the Fourth Proportional to 806,456.57, 1,112,901.27 and 443,872.64

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Solution

The fourth proportional to 806,456.57, 1,112,901.27 and 443,872.64 is: 612,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,456.57 : 1,112,901.27 = 443,872.64 : x
  2. Step 2: Convert to fraction form
    806,456.57/1,112,901.27 = 443,872.64/x
  3. Step 3: Cross multiply
    806,456.57x = 1,112,901.27 × 443,872.64
  4. Step 4: Simplify right side
    806,456.57x = 493,986,424,774.25
  5. Step 5: Solve for x
    x = 493,986,424,774.25/806,456.57
  6. Step 6: Final answer
    x = 612,539.40

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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.