Home / 1,112,131.35-1,534,807.45-628,741.48

Finding the Fourth Proportional to 1,112,131.35, 1,534,807.45 and 628,741.48

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Solution

The fourth proportional to 1,112,131.35, 1,534,807.45 and 628,741.48 is: 867,700.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,131.35 : 1,534,807.45 = 628,741.48 : x
  2. Step 2: Convert to fraction form
    1,112,131.35/1,534,807.45 = 628,741.48/x
  3. Step 3: Cross multiply
    1,112,131.35x = 1,534,807.45 × 628,741.48
  4. Step 4: Simplify right side
    1,112,131.35x = 964,997,107,628.03
  5. Step 5: Solve for x
    x = 964,997,107,628.03/1,112,131.35
  6. Step 6: Final answer
    x = 867,700.66

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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.