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Finding the Fourth Proportional to 544,072.60, 816,108.90 and 385,442.20

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Solution

The fourth proportional to 544,072.60, 816,108.90 and 385,442.20 is: 578,163.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,072.60 : 816,108.90 = 385,442.20 : x
  2. Step 2: Convert to fraction form
    544,072.60/816,108.90 = 385,442.20/x
  3. Step 3: Cross multiply
    544,072.60x = 816,108.90 × 385,442.20
  4. Step 4: Simplify right side
    544,072.60x = 314,562,809,855.58
  5. Step 5: Solve for x
    x = 314,562,809,855.58/544,072.60
  6. Step 6: Final answer
    x = 578,163.30

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Similar ratio
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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.