Home / 805,218.70-1,207,828.05-539,797.90

Finding the Fourth Proportional to 805,218.70, 1,207,828.05 and 539,797.90

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Solution

The fourth proportional to 805,218.70, 1,207,828.05 and 539,797.90 is: 809,696.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,218.70 : 1,207,828.05 = 539,797.90 : x
  2. Step 2: Convert to fraction form
    805,218.70/1,207,828.05 = 539,797.90/x
  3. Step 3: Cross multiply
    805,218.70x = 1,207,828.05 × 539,797.90
  4. Step 4: Simplify right side
    805,218.70x = 651,983,044,951.10
  5. Step 5: Solve for x
    x = 651,983,044,951.10/805,218.70
  6. Step 6: Final answer
    x = 809,696.85

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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.