Home / 1,231,751.21-1,699,570.08-687,803.30

Finding the Fourth Proportional to 1,231,751.21, 1,699,570.08 and 687,803.30

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Solution

The fourth proportional to 1,231,751.21, 1,699,570.08 and 687,803.30 is: 949,030.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,751.21 : 1,699,570.08 = 687,803.30 : x
  2. Step 2: Convert to fraction form
    1,231,751.21/1,699,570.08 = 687,803.30/x
  3. Step 3: Cross multiply
    1,231,751.21x = 1,699,570.08 × 687,803.30
  4. Step 4: Simplify right side
    1,231,751.21x = 1,168,969,907,480.80
  5. Step 5: Solve for x
    x = 1,168,969,907,480.80/1,231,751.21
  6. Step 6: Final answer
    x = 949,030.86

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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.