Home / 829,396.80-1,245,407.40-629,942.40

Finding the Fourth Proportional to 829,396.80, 1,245,407.40 and 629,942.40

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Solution

The fourth proportional to 829,396.80, 1,245,407.40 and 629,942.40 is: 945,910.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,396.80 : 1,245,407.40 = 629,942.40 : x
  2. Step 2: Convert to fraction form
    829,396.80/1,245,407.40 = 629,942.40/x
  3. Step 3: Cross multiply
    829,396.80x = 1,245,407.40 × 629,942.40
  4. Step 4: Simplify right side
    829,396.80x = 784,534,926,533.76
  5. Step 5: Solve for x
    x = 784,534,926,533.76/829,396.80
  6. Step 6: Final answer
    x = 945,910.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.