Home / 3,992,369.20-5,989,428.60-1,296,235.60

Finding the Fourth Proportional to 3,992,369.20, 5,989,428.60 and 1,296,235.60

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Solution

The fourth proportional to 3,992,369.20, 5,989,428.60 and 1,296,235.60 is: 1,944,637.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992,369.20 : 5,989,428.60 = 1,296,235.60 : x
  2. Step 2: Convert to fraction form
    3,992,369.20/5,989,428.60 = 1,296,235.60/x
  3. Step 3: Cross multiply
    3,992,369.20x = 5,989,428.60 × 1,296,235.60
  4. Step 4: Simplify right side
    3,992,369.20x = 7,763,710,574,978.16
  5. Step 5: Solve for x
    x = 7,763,710,574,978.16/3,992,369.20
  6. Step 6: Final answer
    x = 1,944,637.43

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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.