Home / 947,079.20-1,423,729.20-810,221.60

Finding the Fourth Proportional to 947,079.20, 1,423,729.20 and 810,221.60

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Solution

The fourth proportional to 947,079.20, 1,423,729.20 and 810,221.60 is: 1,217,993.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,079.20 : 1,423,729.20 = 810,221.60 : x
  2. Step 2: Convert to fraction form
    947,079.20/1,423,729.20 = 810,221.60/x
  3. Step 3: Cross multiply
    947,079.20x = 1,423,729.20 × 810,221.60
  4. Step 4: Simplify right side
    947,079.20x = 1,153,536,150,390.72
  5. Step 5: Solve for x
    x = 1,153,536,150,390.72/947,079.20
  6. Step 6: Final answer
    x = 1,217,993.33

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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.