Home / 879,271.20-1,318,906.80-406,879.20

Finding the Fourth Proportional to 879,271.20, 1,318,906.80 and 406,879.20

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Solution

The fourth proportional to 879,271.20, 1,318,906.80 and 406,879.20 is: 610,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,271.20 : 1,318,906.80 = 406,879.20 : x
  2. Step 2: Convert to fraction form
    879,271.20/1,318,906.80 = 406,879.20/x
  3. Step 3: Cross multiply
    879,271.20x = 1,318,906.80 × 406,879.20
  4. Step 4: Simplify right side
    879,271.20x = 536,635,743,658.56
  5. Step 5: Solve for x
    x = 536,635,743,658.56/879,271.20
  6. Step 6: Final answer
    x = 610,318.80

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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.