Home / 1,645,226.58-2,270,528.39-920,141.78

Finding the Fourth Proportional to 1,645,226.58, 2,270,528.39 and 920,141.78

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Solution

The fourth proportional to 1,645,226.58, 2,270,528.39 and 920,141.78 is: 1,269,860.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,226.58 : 2,270,528.39 = 920,141.78 : x
  2. Step 2: Convert to fraction form
    1,645,226.58/2,270,528.39 = 920,141.78/x
  3. Step 3: Cross multiply
    1,645,226.58x = 2,270,528.39 × 920,141.78
  4. Step 4: Simplify right side
    1,645,226.58x = 2,089,208,018,361.78
  5. Step 5: Solve for x
    x = 2,089,208,018,361.78/1,645,226.58
  6. Step 6: Final answer
    x = 1,269,860.36

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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.