Home / 785,921.32-1,179,112.04-253,431.64

Finding the Fourth Proportional to 785,921.32, 1,179,112.04 and 253,431.64

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Solution

The fourth proportional to 785,921.32, 1,179,112.04 and 253,431.64 is: 380,221.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,921.32 : 1,179,112.04 = 253,431.64 : x
  2. Step 2: Convert to fraction form
    785,921.32/1,179,112.04 = 253,431.64/x
  3. Step 3: Cross multiply
    785,921.32x = 1,179,112.04 × 253,431.64
  4. Step 4: Simplify right side
    785,921.32x = 298,824,298,040.95
  5. Step 5: Solve for x
    x = 298,824,298,040.95/785,921.32
  6. Step 6: Final answer
    x = 380,221.65

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1.5x scale

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.