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Finding the Fourth Proportional to 455,354.06, 628,946.57 and 341,143.45

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Solution

The fourth proportional to 455,354.06, 628,946.57 and 341,143.45 is: 471,195.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,354.06 : 628,946.57 = 341,143.45 : x
  2. Step 2: Convert to fraction form
    455,354.06/628,946.57 = 341,143.45/x
  3. Step 3: Cross multiply
    455,354.06x = 628,946.57 × 341,143.45
  4. Step 4: Simplify right side
    455,354.06x = 214,561,002,035.96
  5. Step 5: Solve for x
    x = 214,561,002,035.96/455,354.06
  6. Step 6: Final answer
    x = 471,195.98

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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.