Home / 2,645,999.80-3,968,999.70-752,495.20

Finding the Fourth Proportional to 2,645,999.80, 3,968,999.70 and 752,495.20

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Solution

The fourth proportional to 2,645,999.80, 3,968,999.70 and 752,495.20 is: 1,128,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645,999.80 : 3,968,999.70 = 752,495.20 : x
  2. Step 2: Convert to fraction form
    2,645,999.80/3,968,999.70 = 752,495.20/x
  3. Step 3: Cross multiply
    2,645,999.80x = 3,968,999.70 × 752,495.20
  4. Step 4: Simplify right side
    2,645,999.80x = 2,986,653,223,051.44
  5. Step 5: Solve for x
    x = 2,986,653,223,051.44/2,645,999.80
  6. Step 6: Final answer
    x = 1,128,742.80

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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.