Home / 1,078,976.50-1,618,542.51-414,128.50

Finding the Fourth Proportional to 1,078,976.50, 1,618,542.51 and 414,128.50

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Solution

The fourth proportional to 1,078,976.50, 1,618,542.51 and 414,128.50 is: 621,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,976.50 : 1,618,542.51 = 414,128.50 : x
  2. Step 2: Convert to fraction form
    1,078,976.50/1,618,542.51 = 414,128.50/x
  3. Step 3: Cross multiply
    1,078,976.50x = 1,618,542.51 × 414,128.50
  4. Step 4: Simplify right side
    1,078,976.50x = 670,284,581,852.54
  5. Step 5: Solve for x
    x = 670,284,581,852.54/1,078,976.50
  6. Step 6: Final answer
    x = 621,222.60

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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.