Home / 806,348.70-1,112,761.40-443,772.45

Finding the Fourth Proportional to 806,348.70, 1,112,761.40 and 443,772.45

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Solution

The fourth proportional to 806,348.70, 1,112,761.40 and 443,772.45 is: 612,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,348.70 : 1,112,761.40 = 443,772.45 : x
  2. Step 2: Convert to fraction form
    806,348.70/1,112,761.40 = 443,772.45/x
  3. Step 3: Cross multiply
    806,348.70x = 1,112,761.40 × 443,772.45
  4. Step 4: Simplify right side
    806,348.70x = 493,812,850,524.57
  5. Step 5: Solve for x
    x = 493,812,850,524.57/806,348.70
  6. Step 6: Final answer
    x = 612,406.09

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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.