Home / 993,911.40-1,489,110.30-961,021.80

Finding the Fourth Proportional to 993,911.40, 1,489,110.30 and 961,021.80

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Solution

The fourth proportional to 993,911.40, 1,489,110.30 and 961,021.80 is: 1,439,834.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,911.40 : 1,489,110.30 = 961,021.80 : x
  2. Step 2: Convert to fraction form
    993,911.40/1,489,110.30 = 961,021.80/x
  3. Step 3: Cross multiply
    993,911.40x = 1,489,110.30 × 961,021.80
  4. Step 4: Simplify right side
    993,911.40x = 1,431,067,460,904.54
  5. Step 5: Solve for x
    x = 1,431,067,460,904.54/993,911.40
  6. Step 6: Final answer
    x = 1,439,834.03

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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.