Home / 1,152,143.64-1,589,703.66-668,428.44

Finding the Fourth Proportional to 1,152,143.64, 1,589,703.66 and 668,428.44

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Solution

The fourth proportional to 1,152,143.64, 1,589,703.66 and 668,428.44 is: 922,283.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,143.64 : 1,589,703.66 = 668,428.44 : x
  2. Step 2: Convert to fraction form
    1,152,143.64/1,589,703.66 = 668,428.44/x
  3. Step 3: Cross multiply
    1,152,143.64x = 1,589,703.66 × 668,428.44
  4. Step 4: Simplify right side
    1,152,143.64x = 1,062,603,137,516.09
  5. Step 5: Solve for x
    x = 1,062,603,137,516.09/1,152,143.64
  6. Step 6: Final answer
    x = 922,283.56

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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.