Home / 1,179,851.51-1,628,319.95-721,234.57

Finding the Fourth Proportional to 1,179,851.51, 1,628,319.95 and 721,234.57

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Solution

The fourth proportional to 1,179,851.51, 1,628,319.95 and 721,234.57 is: 995,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,851.51 : 1,628,319.95 = 721,234.57 : x
  2. Step 2: Convert to fraction form
    1,179,851.51/1,628,319.95 = 721,234.57/x
  3. Step 3: Cross multiply
    1,179,851.51x = 1,628,319.95 × 721,234.57
  4. Step 4: Simplify right side
    1,179,851.51x = 1,174,400,638,960.67
  5. Step 5: Solve for x
    x = 1,174,400,638,960.67/1,179,851.51
  6. Step 6: Final answer
    x = 995,380.04

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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.