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Finding the Fourth Proportional to 489,269.10, 733,903.65 and 419,285.10

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Solution

The fourth proportional to 489,269.10, 733,903.65 and 419,285.10 is: 628,927.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,269.10 : 733,903.65 = 419,285.10 : x
  2. Step 2: Convert to fraction form
    489,269.10/733,903.65 = 419,285.10/x
  3. Step 3: Cross multiply
    489,269.10x = 733,903.65 × 419,285.10
  4. Step 4: Simplify right side
    489,269.10x = 307,714,865,280.62
  5. Step 5: Solve for x
    x = 307,714,865,280.62/489,269.10
  6. Step 6: Final answer
    x = 628,927.65

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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.