Home / 768,434.25-1,060,450.20-428,902.50

Finding the Fourth Proportional to 768,434.25, 1,060,450.20 and 428,902.50

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Solution

The fourth proportional to 768,434.25, 1,060,450.20 and 428,902.50 is: 591,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,434.25 : 1,060,450.20 = 428,902.50 : x
  2. Step 2: Convert to fraction form
    768,434.25/1,060,450.20 = 428,902.50/x
  3. Step 3: Cross multiply
    768,434.25x = 1,060,450.20 × 428,902.50
  4. Step 4: Simplify right side
    768,434.25x = 454,829,741,905.50
  5. Step 5: Solve for x
    x = 454,829,741,905.50/768,434.25
  6. Step 6: Final answer
    x = 591,891.55

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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.