Home / 993,811.20-1,490,716.80-979,814.40

Finding the Fourth Proportional to 993,811.20, 1,490,716.80 and 979,814.40

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Solution

The fourth proportional to 993,811.20, 1,490,716.80 and 979,814.40 is: 1,469,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,811.20 : 1,490,716.80 = 979,814.40 : x
  2. Step 2: Convert to fraction form
    993,811.20/1,490,716.80 = 979,814.40/x
  3. Step 3: Cross multiply
    993,811.20x = 1,490,716.80 × 979,814.40
  4. Step 4: Simplify right side
    993,811.20x = 1,460,625,786,961.92
  5. Step 5: Solve for x
    x = 1,460,625,786,961.92/993,811.20
  6. Step 6: Final answer
    x = 1,469,721.60

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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.