Home / 455,240.89-628,232.55-251,291.93

Finding the Fourth Proportional to 455,240.89, 628,232.55 and 251,291.93

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Solution

The fourth proportional to 455,240.89, 628,232.55 and 251,291.93 is: 346,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,240.89 : 628,232.55 = 251,291.93 : x
  2. Step 2: Convert to fraction form
    455,240.89/628,232.55 = 251,291.93/x
  3. Step 3: Cross multiply
    455,240.89x = 628,232.55 × 251,291.93
  4. Step 4: Simplify right side
    455,240.89x = 157,869,770,920.67
  5. Step 5: Solve for x
    x = 157,869,770,920.67/455,240.89
  6. Step 6: Final answer
    x = 346,782.93

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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.