Home / 1,221,313.03-1,685,379.42-705,049.45

Finding the Fourth Proportional to 1,221,313.03, 1,685,379.42 and 705,049.45

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Solution

The fourth proportional to 1,221,313.03, 1,685,379.42 and 705,049.45 is: 972,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,313.03 : 1,685,379.42 = 705,049.45 : x
  2. Step 2: Convert to fraction form
    1,221,313.03/1,685,379.42 = 705,049.45/x
  3. Step 3: Cross multiply
    1,221,313.03x = 1,685,379.42 × 705,049.45
  4. Step 4: Simplify right side
    1,221,313.03x = 1,188,275,833,112.32
  5. Step 5: Solve for x
    x = 1,188,275,833,112.32/1,221,313.03
  6. Step 6: Final answer
    x = 972,949.44

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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.