Home / 1,296,014.90-1,944,022.35-820,123.70

Finding the Fourth Proportional to 1,296,014.90, 1,944,022.35 and 820,123.70

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Solution

The fourth proportional to 1,296,014.90, 1,944,022.35 and 820,123.70 is: 1,230,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,014.90 : 1,944,022.35 = 820,123.70 : x
  2. Step 2: Convert to fraction form
    1,296,014.90/1,944,022.35 = 820,123.70/x
  3. Step 3: Cross multiply
    1,296,014.90x = 1,944,022.35 × 820,123.70
  4. Step 4: Simplify right side
    1,296,014.90x = 1,594,338,802,564.70
  5. Step 5: Solve for x
    x = 1,594,338,802,564.70/1,296,014.90
  6. Step 6: Final answer
    x = 1,230,185.55

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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.