Home / 686,629.56-1,029,742.74-265,804.92

Finding the Fourth Proportional to 686,629.56, 1,029,742.74 and 265,804.92

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Solution

The fourth proportional to 686,629.56, 1,029,742.74 and 265,804.92 is: 398,629.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,629.56 : 1,029,742.74 = 265,804.92 : x
  2. Step 2: Convert to fraction form
    686,629.56/1,029,742.74 = 265,804.92/x
  3. Step 3: Cross multiply
    686,629.56x = 1,029,742.74 × 265,804.92
  4. Step 4: Simplify right side
    686,629.56x = 273,710,686,626.28
  5. Step 5: Solve for x
    x = 273,710,686,626.28/686,629.56
  6. Step 6: Final answer
    x = 398,629.34

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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.