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Finding the Fourth Proportional to 455,463.58, 628,622.50 and 271,714.28

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Solution

The fourth proportional to 455,463.58, 628,622.50 and 271,714.28 is: 375,015.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,463.58 : 628,622.50 = 271,714.28 : x
  2. Step 2: Convert to fraction form
    455,463.58/628,622.50 = 271,714.28/x
  3. Step 3: Cross multiply
    455,463.58x = 628,622.50 × 271,714.28
  4. Step 4: Simplify right side
    455,463.58x = 170,805,709,979.30
  5. Step 5: Solve for x
    x = 170,805,709,979.30/455,463.58
  6. Step 6: Final answer
    x = 375,015.08

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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.