Home / 783,027.36-1,080,653.52-438,921.72

Finding the Fourth Proportional to 783,027.36, 1,080,653.52 and 438,921.72

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Solution

The fourth proportional to 783,027.36, 1,080,653.52 and 438,921.72 is: 605,754.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,027.36 : 1,080,653.52 = 438,921.72 : x
  2. Step 2: Convert to fraction form
    783,027.36/1,080,653.52 = 438,921.72/x
  3. Step 3: Cross multiply
    783,027.36x = 1,080,653.52 × 438,921.72
  4. Step 4: Simplify right side
    783,027.36x = 474,322,301,722.45
  5. Step 5: Solve for x
    x = 474,322,301,722.45/783,027.36
  6. Step 6: Final answer
    x = 605,754.44

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1.5x scale

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.