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Finding the Fourth Proportional to 455,760.09, 628,945.23 and 251,810.37

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Solution

The fourth proportional to 455,760.09, 628,945.23 and 251,810.37 is: 347,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,760.09 : 628,945.23 = 251,810.37 : x
  2. Step 2: Convert to fraction form
    455,760.09/628,945.23 = 251,810.37/x
  3. Step 3: Cross multiply
    455,760.09x = 628,945.23 × 251,810.37
  4. Step 4: Simplify right side
    455,760.09x = 158,374,931,076.04
  5. Step 5: Solve for x
    x = 158,374,931,076.04/455,760.09
  6. Step 6: Final answer
    x = 347,496.27

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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.