Home / 879,431.77-1,213,513.86-492,268.87

Finding the Fourth Proportional to 879,431.77, 1,213,513.86 and 492,268.87

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Solution

The fourth proportional to 879,431.77, 1,213,513.86 and 492,268.87 is: 679,273.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,431.77 : 1,213,513.86 = 492,268.87 : x
  2. Step 2: Convert to fraction form
    879,431.77/1,213,513.86 = 492,268.87/x
  3. Step 3: Cross multiply
    879,431.77x = 1,213,513.86 × 492,268.87
  4. Step 4: Simplify right side
    879,431.77x = 597,375,096,591.54
  5. Step 5: Solve for x
    x = 597,375,096,591.54/879,431.77
  6. Step 6: Final answer
    x = 679,273.96

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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.