Home / 3,972,012.80-5,958,019.20-1,312,620.80

Finding the Fourth Proportional to 3,972,012.80, 5,958,019.20 and 1,312,620.80

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Solution

The fourth proportional to 3,972,012.80, 5,958,019.20 and 1,312,620.80 is: 1,968,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972,012.80 : 5,958,019.20 = 1,312,620.80 : x
  2. Step 2: Convert to fraction form
    3,972,012.80/5,958,019.20 = 1,312,620.80/x
  3. Step 3: Cross multiply
    3,972,012.80x = 5,958,019.20 × 1,312,620.80
  4. Step 4: Simplify right side
    3,972,012.80x = 7,820,619,928,719.36
  5. Step 5: Solve for x
    x = 7,820,619,928,719.36/3,972,012.80
  6. Step 6: Final answer
    x = 1,968,931.20

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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.