Home / 1,670,245.20-2,505,345.93-408,083.76

Finding the Fourth Proportional to 1,670,245.20, 2,505,345.93 and 408,083.76

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Solution

The fourth proportional to 1,670,245.20, 2,505,345.93 and 408,083.76 is: 612,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670,245.20 : 2,505,345.93 = 408,083.76 : x
  2. Step 2: Convert to fraction form
    1,670,245.20/2,505,345.93 = 408,083.76/x
  3. Step 3: Cross multiply
    1,670,245.20x = 2,505,345.93 × 408,083.76
  4. Step 4: Simplify right side
    1,670,245.20x = 1,022,390,987,215.10
  5. Step 5: Solve for x
    x = 1,022,390,987,215.10/1,670,245.20
  6. Step 6: Final answer
    x = 612,120.30

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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.