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Finding the Fourth Proportional to 988,891.80, 1,483,337.70 and 883,915.80

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Solution

The fourth proportional to 988,891.80, 1,483,337.70 and 883,915.80 is: 1,325,873.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,891.80 : 1,483,337.70 = 883,915.80 : x
  2. Step 2: Convert to fraction form
    988,891.80/1,483,337.70 = 883,915.80/x
  3. Step 3: Cross multiply
    988,891.80x = 1,483,337.70 × 883,915.80
  4. Step 4: Simplify right side
    988,891.80x = 1,311,145,629,765.66
  5. Step 5: Solve for x
    x = 1,311,145,629,765.66/988,891.80
  6. Step 6: Final answer
    x = 1,325,873.70

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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.