Home / 455,319.20-628,422.72-271,569.52

Finding the Fourth Proportional to 455,319.20, 628,422.72 and 271,569.52

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Solution

The fourth proportional to 455,319.20, 628,422.72 and 271,569.52 is: 374,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,319.20 : 628,422.72 = 271,569.52 : x
  2. Step 2: Convert to fraction form
    455,319.20/628,422.72 = 271,569.52/x
  3. Step 3: Cross multiply
    455,319.20x = 628,422.72 × 271,569.52
  4. Step 4: Simplify right side
    455,319.20x = 170,660,456,427.49
  5. Step 5: Solve for x
    x = 170,660,456,427.49/455,319.20
  6. Step 6: Final answer
    x = 374,814.98

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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.