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Finding the Fourth Proportional to 496,906.10, 745,359.15 and 489,907.70

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Solution

The fourth proportional to 496,906.10, 745,359.15 and 489,907.70 is: 734,861.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,906.10 : 745,359.15 = 489,907.70 : x
  2. Step 2: Convert to fraction form
    496,906.10/745,359.15 = 489,907.70/x
  3. Step 3: Cross multiply
    496,906.10x = 745,359.15 × 489,907.70
  4. Step 4: Simplify right side
    496,906.10x = 365,157,186,850.46
  5. Step 5: Solve for x
    x = 365,157,186,850.46/496,906.10
  6. Step 6: Final answer
    x = 734,861.55

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Similar ratio
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1.5x scale

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.