Home / 455,845.68-629,065.47-251,890.92

Finding the Fourth Proportional to 455,845.68, 629,065.47 and 251,890.92

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Solution

The fourth proportional to 455,845.68, 629,065.47 and 251,890.92 is: 347,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,845.68 : 629,065.47 = 251,890.92 : x
  2. Step 2: Convert to fraction form
    455,845.68/629,065.47 = 251,890.92/x
  3. Step 3: Cross multiply
    455,845.68x = 629,065.47 × 251,890.92
  4. Step 4: Simplify right side
    455,845.68x = 158,455,879,978.53
  5. Step 5: Solve for x
    x = 158,455,879,978.53/455,845.68
  6. Step 6: Final answer
    x = 347,608.60

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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.