Home / 1,186,239.69-1,778,991.57-427,982.58

Finding the Fourth Proportional to 1,186,239.69, 1,778,991.57 and 427,982.58

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Solution

The fourth proportional to 1,186,239.69, 1,778,991.57 and 427,982.58 is: 641,841.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,239.69 : 1,778,991.57 = 427,982.58 : x
  2. Step 2: Convert to fraction form
    1,186,239.69/1,778,991.57 = 427,982.58/x
  3. Step 3: Cross multiply
    1,186,239.69x = 1,778,991.57 × 427,982.58
  4. Step 4: Simplify right side
    1,186,239.69x = 761,377,401,926.85
  5. Step 5: Solve for x
    x = 761,377,401,926.85/1,186,239.69
  6. Step 6: Final answer
    x = 641,841.11

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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.