Home / 806,023.88-1,112,312.91-443,439.95

Finding the Fourth Proportional to 806,023.88, 1,112,312.91 and 443,439.95

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Solution

The fourth proportional to 806,023.88, 1,112,312.91 and 443,439.95 is: 611,947.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,023.88 : 1,112,312.91 = 443,439.95 : x
  2. Step 2: Convert to fraction form
    806,023.88/1,112,312.91 = 443,439.95/x
  3. Step 3: Cross multiply
    806,023.88x = 1,112,312.91 × 443,439.95
  4. Step 4: Simplify right side
    806,023.88x = 493,243,983,975.54
  5. Step 5: Solve for x
    x = 493,243,983,975.54/806,023.88
  6. Step 6: Final answer
    x = 611,947.11

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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.