Home / 1,370,145.51-1,890,786.87-758,299.46

Finding the Fourth Proportional to 1,370,145.51, 1,890,786.87 and 758,299.46

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Solution

The fourth proportional to 1,370,145.51, 1,890,786.87 and 758,299.46 is: 1,046,445.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,145.51 : 1,890,786.87 = 758,299.46 : x
  2. Step 2: Convert to fraction form
    1,370,145.51/1,890,786.87 = 758,299.46/x
  3. Step 3: Cross multiply
    1,370,145.51x = 1,890,786.87 × 758,299.46
  4. Step 4: Simplify right side
    1,370,145.51x = 1,433,782,653,042.16
  5. Step 5: Solve for x
    x = 1,433,782,653,042.16/1,370,145.51
  6. Step 6: Final answer
    x = 1,046,445.54

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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.