Home / 1,320,033.12-1,980,882.65-561,873.36

Finding the Fourth Proportional to 1,320,033.12, 1,980,882.65 and 561,873.36

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Solution

The fourth proportional to 1,320,033.12, 1,980,882.65 and 561,873.36 is: 843,164.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,033.12 : 1,980,882.65 = 561,873.36 : x
  2. Step 2: Convert to fraction form
    1,320,033.12/1,980,882.65 = 561,873.36/x
  3. Step 3: Cross multiply
    1,320,033.12x = 1,980,882.65 × 561,873.36
  4. Step 4: Simplify right side
    1,320,033.12x = 1,113,005,190,321.20
  5. Step 5: Solve for x
    x = 1,113,005,190,321.20/1,320,033.12
  6. Step 6: Final answer
    x = 843,164.59

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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.