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Finding the Fourth Proportional to 485,466.22, 670,181.12 and 376,329.46

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Solution

The fourth proportional to 485,466.22, 670,181.12 and 376,329.46 is: 519,518.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,466.22 : 670,181.12 = 376,329.46 : x
  2. Step 2: Convert to fraction form
    485,466.22/670,181.12 = 376,329.46/x
  3. Step 3: Cross multiply
    485,466.22x = 670,181.12 × 376,329.46
  4. Step 4: Simplify right side
    485,466.22x = 252,208,893,759.24
  5. Step 5: Solve for x
    x = 252,208,893,759.24/485,466.22
  6. Step 6: Final answer
    x = 519,518.94

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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.