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Finding the Fourth Proportional to 996,633.60, 1,494,950.40 and 990,728.70

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Solution

The fourth proportional to 996,633.60, 1,494,950.40 and 990,728.70 is: 1,486,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,633.60 : 1,494,950.40 = 990,728.70 : x
  2. Step 2: Convert to fraction form
    996,633.60/1,494,950.40 = 990,728.70/x
  3. Step 3: Cross multiply
    996,633.60x = 1,494,950.40 × 990,728.70
  4. Step 4: Simplify right side
    996,633.60x = 1,481,090,266,356.48
  5. Step 5: Solve for x
    x = 1,481,090,266,356.48/996,633.60
  6. Step 6: Final answer
    x = 1,486,093.05

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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.