Home / 1,198,685.12-1,798,043.25-399,966.66

Finding the Fourth Proportional to 1,198,685.12, 1,798,043.25 and 399,966.66

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Solution

The fourth proportional to 1,198,685.12, 1,798,043.25 and 399,966.66 is: 599,955.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,685.12 : 1,798,043.25 = 399,966.66 : x
  2. Step 2: Convert to fraction form
    1,198,685.12/1,798,043.25 = 399,966.66/x
  3. Step 3: Cross multiply
    1,198,685.12x = 1,798,043.25 × 399,966.66
  4. Step 4: Simplify right side
    1,198,685.12x = 719,157,353,238.05
  5. Step 5: Solve for x
    x = 719,157,353,238.05/1,198,685.12
  6. Step 6: Final answer
    x = 599,955.19

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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.