Home / 1,210,428.82-1,670,480.57-866,297.06

Finding the Fourth Proportional to 1,210,428.82, 1,670,480.57 and 866,297.06

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Solution

The fourth proportional to 1,210,428.82, 1,670,480.57 and 866,297.06 is: 1,195,553.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,428.82 : 1,670,480.57 = 866,297.06 : x
  2. Step 2: Convert to fraction form
    1,210,428.82/1,670,480.57 = 866,297.06/x
  3. Step 3: Cross multiply
    1,210,428.82x = 1,670,480.57 × 866,297.06
  4. Step 4: Simplify right side
    1,210,428.82x = 1,447,132,406,578.12
  5. Step 5: Solve for x
    x = 1,447,132,406,578.12/1,210,428.82
  6. Step 6: Final answer
    x = 1,195,553.50

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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.