Home / 1,212,078.02-1,672,678.44-668,232.95

Finding the Fourth Proportional to 1,212,078.02, 1,672,678.44 and 668,232.95

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Solution

The fourth proportional to 1,212,078.02, 1,672,678.44 and 668,232.95 is: 922,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,078.02 : 1,672,678.44 = 668,232.95 : x
  2. Step 2: Convert to fraction form
    1,212,078.02/1,672,678.44 = 668,232.95/x
  3. Step 3: Cross multiply
    1,212,078.02x = 1,672,678.44 × 668,232.95
  4. Step 4: Simplify right side
    1,212,078.02x = 1,117,738,839,999.21
  5. Step 5: Solve for x
    x = 1,117,738,839,999.21/1,212,078.02
  6. Step 6: Final answer
    x = 922,167.41

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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.