Home / 813,651.84-1,220,929.92-364,354.56

Finding the Fourth Proportional to 813,651.84, 1,220,929.92 and 364,354.56

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Solution

The fourth proportional to 813,651.84, 1,220,929.92 and 364,354.56 is: 546,734.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,651.84 : 1,220,929.92 = 364,354.56 : x
  2. Step 2: Convert to fraction form
    813,651.84/1,220,929.92 = 364,354.56/x
  3. Step 3: Cross multiply
    813,651.84x = 1,220,929.92 × 364,354.56
  4. Step 4: Simplify right side
    813,651.84x = 444,851,383,792.44
  5. Step 5: Solve for x
    x = 444,851,383,792.44/813,651.84
  6. Step 6: Final answer
    x = 546,734.32

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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.