Home / 1,191,303-1,787,175.90-392,640.66

Finding the Fourth Proportional to 1,191,303, 1,787,175.90 and 392,640.66

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Solution

The fourth proportional to 1,191,303, 1,787,175.90 and 392,640.66 is: 589,033.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,303 : 1,787,175.90 = 392,640.66 : x
  2. Step 2: Convert to fraction form
    1,191,303/1,787,175.90 = 392,640.66/x
  3. Step 3: Cross multiply
    1,191,303x = 1,787,175.90 × 392,640.66
  4. Step 4: Simplify right side
    1,191,303x = 701,717,924,912.09
  5. Step 5: Solve for x
    x = 701,717,924,912.09/1,191,303
  6. Step 6: Final answer
    x = 589,033.96

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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.