Home / 676,492.31-1,014,821.91-221,072.78

Finding the Fourth Proportional to 676,492.31, 1,014,821.91 and 221,072.78

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Solution

The fourth proportional to 676,492.31, 1,014,821.91 and 221,072.78 is: 331,636.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,492.31 : 1,014,821.91 = 221,072.78 : x
  2. Step 2: Convert to fraction form
    676,492.31/1,014,821.91 = 221,072.78/x
  3. Step 3: Cross multiply
    676,492.31x = 1,014,821.91 × 221,072.78
  4. Step 4: Simplify right side
    676,492.31x = 224,349,503,385.67
  5. Step 5: Solve for x
    x = 224,349,503,385.67/676,492.31
  6. Step 6: Final answer
    x = 331,636.44

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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.