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Finding the Fourth Proportional to 531,102.20, 796,653.30 and 489,111.80

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Solution

The fourth proportional to 531,102.20, 796,653.30 and 489,111.80 is: 733,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,102.20 : 796,653.30 = 489,111.80 : x
  2. Step 2: Convert to fraction form
    531,102.20/796,653.30 = 489,111.80/x
  3. Step 3: Cross multiply
    531,102.20x = 796,653.30 × 489,111.80
  4. Step 4: Simplify right side
    531,102.20x = 389,652,529,538.94
  5. Step 5: Solve for x
    x = 389,652,529,538.94/531,102.20
  6. Step 6: Final answer
    x = 733,667.70

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Double scale
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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.