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Finding the Fourth Proportional to 455,474.84, 628,555.20 and 254,270.84

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Solution

The fourth proportional to 455,474.84, 628,555.20 and 254,270.84 is: 350,893.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,474.84 : 628,555.20 = 254,270.84 : x
  2. Step 2: Convert to fraction form
    455,474.84/628,555.20 = 254,270.84/x
  3. Step 3: Cross multiply
    455,474.84x = 628,555.20 × 254,270.84
  4. Step 4: Simplify right side
    455,474.84x = 159,823,258,690.37
  5. Step 5: Solve for x
    x = 159,823,258,690.37/455,474.84
  6. Step 6: Final answer
    x = 350,893.71

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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.