Home / 1,210,705.88-1,670,785.32-666,860.94

Finding the Fourth Proportional to 1,210,705.88, 1,670,785.32 and 666,860.94

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Solution

The fourth proportional to 1,210,705.88, 1,670,785.32 and 666,860.94 is: 920,274.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,705.88 : 1,670,785.32 = 666,860.94 : x
  2. Step 2: Convert to fraction form
    1,210,705.88/1,670,785.32 = 666,860.94/x
  3. Step 3: Cross multiply
    1,210,705.88x = 1,670,785.32 × 666,860.94
  4. Step 4: Simplify right side
    1,210,705.88x = 1,114,181,469,033.40
  5. Step 5: Solve for x
    x = 1,114,181,469,033.40/1,210,705.88
  6. Step 6: Final answer
    x = 920,274.27

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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.