Home / 2,605,910.40-3,907,828.80-922,147.20

Finding the Fourth Proportional to 2,605,910.40, 3,907,828.80 and 922,147.20

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Solution

The fourth proportional to 2,605,910.40, 3,907,828.80 and 922,147.20 is: 1,382,853.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605,910.40 : 3,907,828.80 = 922,147.20 : x
  2. Step 2: Convert to fraction form
    2,605,910.40/3,907,828.80 = 922,147.20/x
  3. Step 3: Cross multiply
    2,605,910.40x = 3,907,828.80 × 922,147.20
  4. Step 4: Simplify right side
    2,605,910.40x = 3,603,593,385,999.36
  5. Step 5: Solve for x
    x = 3,603,593,385,999.36/2,605,910.40
  6. Step 6: Final answer
    x = 1,382,853.91

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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.