Home / 1,212,013.62-1,672,583.85-668,137.47

Finding the Fourth Proportional to 1,212,013.62, 1,672,583.85 and 668,137.47

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Solution

The fourth proportional to 1,212,013.62, 1,672,583.85 and 668,137.47 is: 922,032.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,013.62 : 1,672,583.85 = 668,137.47 : x
  2. Step 2: Convert to fraction form
    1,212,013.62/1,672,583.85 = 668,137.47/x
  3. Step 3: Cross multiply
    1,212,013.62x = 1,672,583.85 × 668,137.47
  4. Step 4: Simplify right side
    1,212,013.62x = 1,117,515,941,901.86
  5. Step 5: Solve for x
    x = 1,117,515,941,901.86/1,212,013.62
  6. Step 6: Final answer
    x = 922,032.49

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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.