Home / 807,850.61-1,211,644.63-381,385.61

Finding the Fourth Proportional to 807,850.61, 1,211,644.63 and 381,385.61

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Solution

The fourth proportional to 807,850.61, 1,211,644.63 and 381,385.61 is: 572,016.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,850.61 : 1,211,644.63 = 381,385.61 : x
  2. Step 2: Convert to fraction form
    807,850.61/1,211,644.63 = 381,385.61/x
  3. Step 3: Cross multiply
    807,850.61x = 1,211,644.63 × 381,385.61
  4. Step 4: Simplify right side
    807,850.61x = 462,103,829,948.16
  5. Step 5: Solve for x
    x = 462,103,829,948.16/807,850.61
  6. Step 6: Final answer
    x = 572,016.44

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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.