Home / 829,389.80-1,245,396.90-629,935.40

Finding the Fourth Proportional to 829,389.80, 1,245,396.90 and 629,935.40

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Solution

The fourth proportional to 829,389.80, 1,245,396.90 and 629,935.40 is: 945,899.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,389.80 : 1,245,396.90 = 629,935.40 : x
  2. Step 2: Convert to fraction form
    829,389.80/1,245,396.90 = 629,935.40/x
  3. Step 3: Cross multiply
    829,389.80x = 1,245,396.90 × 629,935.40
  4. Step 4: Simplify right side
    829,389.80x = 784,519,594,360.26
  5. Step 5: Solve for x
    x = 784,519,594,360.26/829,389.80
  6. Step 6: Final answer
    x = 945,899.74

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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.