Home / 1,218,214.94-1,681,181.44-666,969.26

Finding the Fourth Proportional to 1,218,214.94, 1,681,181.44 and 666,969.26

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Solution

The fourth proportional to 1,218,214.94, 1,681,181.44 and 666,969.26 is: 920,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,214.94 : 1,681,181.44 = 666,969.26 : x
  2. Step 2: Convert to fraction form
    1,218,214.94/1,681,181.44 = 666,969.26/x
  3. Step 3: Cross multiply
    1,218,214.94x = 1,681,181.44 × 666,969.26
  4. Step 4: Simplify right side
    1,218,214.94x = 1,121,296,340,962.53
  5. Step 5: Solve for x
    x = 1,121,296,340,962.53/1,218,214.94
  6. Step 6: Final answer
    x = 920,442.12

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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.