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Finding the Fourth Proportional to 531,109.70, 796,664.55 and 489,119.30

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Solution

The fourth proportional to 531,109.70, 796,664.55 and 489,119.30 is: 733,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,109.70 : 796,664.55 = 489,119.30 : x
  2. Step 2: Convert to fraction form
    531,109.70/796,664.55 = 489,119.30/x
  3. Step 3: Cross multiply
    531,109.70x = 796,664.55 × 489,119.30
  4. Step 4: Simplify right side
    531,109.70x = 389,664,007,030.82
  5. Step 5: Solve for x
    x = 389,664,007,030.82/531,109.70
  6. Step 6: Final answer
    x = 733,678.95

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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.