Home / 1,182,512.14-1,631,866.53-638,647.92

Finding the Fourth Proportional to 1,182,512.14, 1,631,866.53 and 638,647.92

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Solution

The fourth proportional to 1,182,512.14, 1,631,866.53 and 638,647.92 is: 881,334.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,512.14 : 1,631,866.53 = 638,647.92 : x
  2. Step 2: Convert to fraction form
    1,182,512.14/1,631,866.53 = 638,647.92/x
  3. Step 3: Cross multiply
    1,182,512.14x = 1,631,866.53 × 638,647.92
  4. Step 4: Simplify right side
    1,182,512.14x = 1,042,188,165,102.12
  5. Step 5: Solve for x
    x = 1,042,188,165,102.12/1,182,512.14
  6. Step 6: Final answer
    x = 881,334.01

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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.