Home / 1,191,858.30-1,787,842.53-393,209.64

Finding the Fourth Proportional to 1,191,858.30, 1,787,842.53 and 393,209.64

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Solution

The fourth proportional to 1,191,858.30, 1,787,842.53 and 393,209.64 is: 589,832.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,858.30 : 1,787,842.53 = 393,209.64 : x
  2. Step 2: Convert to fraction form
    1,191,858.30/1,787,842.53 = 393,209.64/x
  3. Step 3: Cross multiply
    1,191,858.30x = 1,787,842.53 × 393,209.64
  4. Step 4: Simplify right side
    1,191,858.30x = 702,996,917,597.99
  5. Step 5: Solve for x
    x = 702,996,917,597.99/1,191,858.30
  6. Step 6: Final answer
    x = 589,832.63

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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.