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Finding the Fourth Proportional to 886,889.80, 1,330,334.70 and 603,454.60

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Solution

The fourth proportional to 886,889.80, 1,330,334.70 and 603,454.60 is: 905,181.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,889.80 : 1,330,334.70 = 603,454.60 : x
  2. Step 2: Convert to fraction form
    886,889.80/1,330,334.70 = 603,454.60/x
  3. Step 3: Cross multiply
    886,889.80x = 1,330,334.70 × 603,454.60
  4. Step 4: Simplify right side
    886,889.80x = 802,796,594,254.62
  5. Step 5: Solve for x
    x = 802,796,594,254.62/886,889.80
  6. Step 6: Final answer
    x = 905,181.90

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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.