Home / 1,320,056.36-1,980,917.49-561,896.61

Finding the Fourth Proportional to 1,320,056.36, 1,980,917.49 and 561,896.61

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Solution

The fourth proportional to 1,320,056.36, 1,980,917.49 and 561,896.61 is: 843,199.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,056.36 : 1,980,917.49 = 561,896.61 : x
  2. Step 2: Convert to fraction form
    1,320,056.36/1,980,917.49 = 561,896.61/x
  3. Step 3: Cross multiply
    1,320,056.36x = 1,980,917.49 × 561,896.61
  4. Step 4: Simplify right side
    1,320,056.36x = 1,113,070,819,511.23
  5. Step 5: Solve for x
    x = 1,113,070,819,511.23/1,320,056.36
  6. Step 6: Final answer
    x = 843,199.47

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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.