Home / 1,308,439.98-1,962,161.82-859,040.64

Finding the Fourth Proportional to 1,308,439.98, 1,962,161.82 and 859,040.64

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Solution

The fourth proportional to 1,308,439.98, 1,962,161.82 and 859,040.64 is: 1,288,233.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,439.98 : 1,962,161.82 = 859,040.64 : x
  2. Step 2: Convert to fraction form
    1,308,439.98/1,962,161.82 = 859,040.64/x
  3. Step 3: Cross multiply
    1,308,439.98x = 1,962,161.82 × 859,040.64
  4. Step 4: Simplify right side
    1,308,439.98x = 1,685,576,745,636.37
  5. Step 5: Solve for x
    x = 1,685,576,745,636.37/1,308,439.98
  6. Step 6: Final answer
    x = 1,288,233.91

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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.