Home / 1,408,621.44-1,943,886.24-764,040

Finding the Fourth Proportional to 1,408,621.44, 1,943,886.24 and 764,040

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Solution

The fourth proportional to 1,408,621.44, 1,943,886.24 and 764,040 is: 1,054,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,621.44 : 1,943,886.24 = 764,040 : x
  2. Step 2: Convert to fraction form
    1,408,621.44/1,943,886.24 = 764,040/x
  3. Step 3: Cross multiply
    1,408,621.44x = 1,943,886.24 × 764,040
  4. Step 4: Simplify right side
    1,408,621.44x = 1,485,206,842,809.60
  5. Step 5: Solve for x
    x = 1,485,206,842,809.60/1,408,621.44
  6. Step 6: Final answer
    x = 1,054,369.05

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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.