Home / 939,659.12-1,296,059.59-862,383.75

Finding the Fourth Proportional to 939,659.12, 1,296,059.59 and 862,383.75

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Solution

The fourth proportional to 939,659.12, 1,296,059.59 and 862,383.75 is: 1,189,474.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,659.12 : 1,296,059.59 = 862,383.75 : x
  2. Step 2: Convert to fraction form
    939,659.12/1,296,059.59 = 862,383.75/x
  3. Step 3: Cross multiply
    939,659.12x = 1,296,059.59 × 862,383.75
  4. Step 4: Simplify right side
    939,659.12x = 1,117,700,729,319.90
  5. Step 5: Solve for x
    x = 1,117,700,729,319.90/939,659.12
  6. Step 6: Final answer
    x = 1,189,474.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.