Home / 873,399.21-1,309,319.69-340,796.36

Finding the Fourth Proportional to 873,399.21, 1,309,319.69 and 340,796.36

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Solution

The fourth proportional to 873,399.21, 1,309,319.69 and 340,796.36 is: 510,890.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,399.21 : 1,309,319.69 = 340,796.36 : x
  2. Step 2: Convert to fraction form
    873,399.21/1,309,319.69 = 340,796.36/x
  3. Step 3: Cross multiply
    873,399.21x = 1,309,319.69 × 340,796.36
  4. Step 4: Simplify right side
    873,399.21x = 446,211,387,914.63
  5. Step 5: Solve for x
    x = 446,211,387,914.63/873,399.21
  6. Step 6: Final answer
    x = 510,890.54

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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.