Home / 3,908,809.21-5,863,988.80-1,213,019.36

Finding the Fourth Proportional to 3,908,809.21, 5,863,988.80 and 1,213,019.36

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Solution

The fourth proportional to 3,908,809.21, 5,863,988.80 and 1,213,019.36 is: 1,819,769.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908,809.21 : 5,863,988.80 = 1,213,019.36 : x
  2. Step 2: Convert to fraction form
    3,908,809.21/5,863,988.80 = 1,213,019.36/x
  3. Step 3: Cross multiply
    3,908,809.21x = 5,863,988.80 × 1,213,019.36
  4. Step 4: Simplify right side
    3,908,809.21x = 7,113,131,941,223.17
  5. Step 5: Solve for x
    x = 7,113,131,941,223.17/3,908,809.21
  6. Step 6: Final answer
    x = 1,819,769.54

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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.