Home / 1,211,745.64-1,672,282.02-667,880.68

Finding the Fourth Proportional to 1,211,745.64, 1,672,282.02 and 667,880.68

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Solution

The fourth proportional to 1,211,745.64, 1,672,282.02 and 667,880.68 is: 921,715.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,745.64 : 1,672,282.02 = 667,880.68 : x
  2. Step 2: Convert to fraction form
    1,211,745.64/1,672,282.02 = 667,880.68/x
  3. Step 3: Cross multiply
    1,211,745.64x = 1,672,282.02 × 667,880.68
  4. Step 4: Simplify right side
    1,211,745.64x = 1,116,884,852,669.37
  5. Step 5: Solve for x
    x = 1,116,884,852,669.37/1,211,745.64
  6. Step 6: Final answer
    x = 921,715.59

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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.