Home / 1,112,643.41-1,669,172.89-505,474.36

Finding the Fourth Proportional to 1,112,643.41, 1,669,172.89 and 505,474.36

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Solution

The fourth proportional to 1,112,643.41, 1,669,172.89 and 505,474.36 is: 758,305.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,643.41 : 1,669,172.89 = 505,474.36 : x
  2. Step 2: Convert to fraction form
    1,112,643.41/1,669,172.89 = 505,474.36/x
  3. Step 3: Cross multiply
    1,112,643.41x = 1,669,172.89 × 505,474.36
  4. Step 4: Simplify right side
    1,112,643.41x = 843,724,087,428.86
  5. Step 5: Solve for x
    x = 843,724,087,428.86/1,112,643.41
  6. Step 6: Final answer
    x = 758,305.92

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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.