Home / 670,122.21-1,005,307.83-220,874.61

Finding the Fourth Proportional to 670,122.21, 1,005,307.83 and 220,874.61

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Solution

The fourth proportional to 670,122.21, 1,005,307.83 and 220,874.61 is: 331,352.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,122.21 : 1,005,307.83 = 220,874.61 : x
  2. Step 2: Convert to fraction form
    670,122.21/1,005,307.83 = 220,874.61/x
  3. Step 3: Cross multiply
    670,122.21x = 1,005,307.83 × 220,874.61
  4. Step 4: Simplify right side
    670,122.21x = 222,046,974,881.20
  5. Step 5: Solve for x
    x = 222,046,974,881.20/670,122.21
  6. Step 6: Final answer
    x = 331,352.96

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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.