Home / 670,392.56-925,087.02-394,706.90

Finding the Fourth Proportional to 670,392.56, 925,087.02 and 394,706.90

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Solution

The fourth proportional to 670,392.56, 925,087.02 and 394,706.90 is: 544,663.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,392.56 : 925,087.02 = 394,706.90 : x
  2. Step 2: Convert to fraction form
    670,392.56/925,087.02 = 394,706.90/x
  3. Step 3: Cross multiply
    670,392.56x = 925,087.02 × 394,706.90
  4. Step 4: Simplify right side
    670,392.56x = 365,138,229,894.44
  5. Step 5: Solve for x
    x = 365,138,229,894.44/670,392.56
  6. Step 6: Final answer
    x = 544,663.31

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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.