Home / 1,320,056.34-1,980,917.48-561,896.63

Finding the Fourth Proportional to 1,320,056.34, 1,980,917.48 and 561,896.63

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Solution

The fourth proportional to 1,320,056.34, 1,980,917.48 and 561,896.63 is: 843,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,056.34 : 1,980,917.48 = 561,896.63 : x
  2. Step 2: Convert to fraction form
    1,320,056.34/1,980,917.48 = 561,896.63/x
  3. Step 3: Cross multiply
    1,320,056.34x = 1,980,917.48 × 561,896.63
  4. Step 4: Simplify right side
    1,320,056.34x = 1,113,070,856,320.09
  5. Step 5: Solve for x
    x = 1,113,070,856,320.09/1,320,056.34
  6. Step 6: Final answer
    x = 843,199.51

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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.