Home / 1,556,970.67-2,148,620.87-868,642.64

Finding the Fourth Proportional to 1,556,970.67, 2,148,620.87 and 868,642.64

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Solution

The fourth proportional to 1,556,970.67, 2,148,620.87 and 868,642.64 is: 1,198,727.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,970.67 : 2,148,620.87 = 868,642.64 : x
  2. Step 2: Convert to fraction form
    1,556,970.67/2,148,620.87 = 868,642.64/x
  3. Step 3: Cross multiply
    1,556,970.67x = 2,148,620.87 × 868,642.64
  4. Step 4: Simplify right side
    1,556,970.67x = 1,866,383,689,789.58
  5. Step 5: Solve for x
    x = 1,866,383,689,789.58/1,556,970.67
  6. Step 6: Final answer
    x = 1,198,727.58

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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.