Home / 455,317.37-628,420.24-271,567.72

Finding the Fourth Proportional to 455,317.37, 628,420.24 and 271,567.72

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Solution

The fourth proportional to 455,317.37, 628,420.24 and 271,567.72 is: 374,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,317.37 : 628,420.24 = 271,567.72 : x
  2. Step 2: Convert to fraction form
    455,317.37/628,420.24 = 271,567.72/x
  3. Step 3: Cross multiply
    455,317.37x = 628,420.24 × 271,567.72
  4. Step 4: Simplify right side
    455,317.37x = 170,658,651,778.65
  5. Step 5: Solve for x
    x = 170,658,651,778.65/455,317.37
  6. Step 6: Final answer
    x = 374,812.52

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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.