Home / 989,600.40-1,483,234.20-739,990.80

Finding the Fourth Proportional to 989,600.40, 1,483,234.20 and 739,990.80

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Solution

The fourth proportional to 989,600.40, 1,483,234.20 and 739,990.80 is: 1,109,114.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,600.40 : 1,483,234.20 = 739,990.80 : x
  2. Step 2: Convert to fraction form
    989,600.40/1,483,234.20 = 739,990.80/x
  3. Step 3: Cross multiply
    989,600.40x = 1,483,234.20 × 739,990.80
  4. Step 4: Simplify right side
    989,600.40x = 1,097,579,662,245.36
  5. Step 5: Solve for x
    x = 1,097,579,662,245.36/989,600.40
  6. Step 6: Final answer
    x = 1,109,114.00

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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.