Home / 670,450.83-925,218.93-394,968.61

Finding the Fourth Proportional to 670,450.83, 925,218.93 and 394,968.61

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Solution

The fourth proportional to 670,450.83, 925,218.93 and 394,968.61 is: 545,054.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,450.83 : 925,218.93 = 394,968.61 : x
  2. Step 2: Convert to fraction form
    670,450.83/925,218.93 = 394,968.61/x
  3. Step 3: Cross multiply
    670,450.83x = 925,218.93 × 394,968.61
  4. Step 4: Simplify right side
    670,450.83x = 365,432,434,727.79
  5. Step 5: Solve for x
    x = 365,432,434,727.79/670,450.83
  6. Step 6: Final answer
    x = 545,054.79

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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.