Home / 948,135.58-1,420,839.23-408,243.65

Finding the Fourth Proportional to 948,135.58, 1,420,839.23 and 408,243.65

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Solution

The fourth proportional to 948,135.58, 1,420,839.23 and 408,243.65 is: 611,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,135.58 : 1,420,839.23 = 408,243.65 : x
  2. Step 2: Convert to fraction form
    948,135.58/1,420,839.23 = 408,243.65/x
  3. Step 3: Cross multiply
    948,135.58x = 1,420,839.23 × 408,243.65
  4. Step 4: Simplify right side
    948,135.58x = 580,048,584,172.98
  5. Step 5: Solve for x
    x = 580,048,584,172.98/948,135.58
  6. Step 6: Final answer
    x = 611,778.10

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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.