Home / 2,138,515.36-3,209,019.63-791,614.96

Finding the Fourth Proportional to 2,138,515.36, 3,209,019.63 and 791,614.96

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Solution

The fourth proportional to 2,138,515.36, 3,209,019.63 and 791,614.96 is: 1,187,883.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,515.36 : 3,209,019.63 = 791,614.96 : x
  2. Step 2: Convert to fraction form
    2,138,515.36/3,209,019.63 = 791,614.96/x
  3. Step 3: Cross multiply
    2,138,515.36x = 3,209,019.63 × 791,614.96
  4. Step 4: Simplify right side
    2,138,515.36x = 2,540,307,946,041.66
  5. Step 5: Solve for x
    x = 2,540,307,946,041.66/2,138,515.36
  6. Step 6: Final answer
    x = 1,187,883.89

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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.