Home / 451,251.07-622,743.74-257,690.37

Finding the Fourth Proportional to 451,251.07, 622,743.74 and 257,690.37

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Solution

The fourth proportional to 451,251.07, 622,743.74 and 257,690.37 is: 355,622.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,251.07 : 622,743.74 = 257,690.37 : x
  2. Step 2: Convert to fraction form
    451,251.07/622,743.74 = 257,690.37/x
  3. Step 3: Cross multiply
    451,251.07x = 622,743.74 × 257,690.37
  4. Step 4: Simplify right side
    451,251.07x = 160,475,064,775.78
  5. Step 5: Solve for x
    x = 160,475,064,775.78/451,251.07
  6. Step 6: Final answer
    x = 355,622.57

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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.