Home / 1,405,868.55-1,940,095.08-761,288.73

Finding the Fourth Proportional to 1,405,868.55, 1,940,095.08 and 761,288.73

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Solution

The fourth proportional to 1,405,868.55, 1,940,095.08 and 761,288.73 is: 1,050,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,868.55 : 1,940,095.08 = 761,288.73 : x
  2. Step 2: Convert to fraction form
    1,405,868.55/1,940,095.08 = 761,288.73/x
  3. Step 3: Cross multiply
    1,405,868.55x = 1,940,095.08 × 761,288.73
  4. Step 4: Simplify right side
    1,405,868.55x = 1,476,972,519,532.45
  5. Step 5: Solve for x
    x = 1,476,972,519,532.45/1,405,868.55
  6. Step 6: Final answer
    x = 1,050,576.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.