Home / 993,908.40-1,489,105.80-961,018.80

Finding the Fourth Proportional to 993,908.40, 1,489,105.80 and 961,018.80

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Solution

The fourth proportional to 993,908.40, 1,489,105.80 and 961,018.80 is: 1,439,829.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,908.40 : 1,489,105.80 = 961,018.80 : x
  2. Step 2: Convert to fraction form
    993,908.40/1,489,105.80 = 961,018.80/x
  3. Step 3: Cross multiply
    993,908.40x = 1,489,105.80 × 961,018.80
  4. Step 4: Simplify right side
    993,908.40x = 1,431,058,668,989.04
  5. Step 5: Solve for x
    x = 1,431,058,668,989.04/993,908.40
  6. Step 6: Final answer
    x = 1,439,829.53

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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.