Home / 1,211,672.88-1,672,040.37-667,807.02

Finding the Fourth Proportional to 1,211,672.88, 1,672,040.37 and 667,807.02

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Solution

The fourth proportional to 1,211,672.88, 1,672,040.37 and 667,807.02 is: 921,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,672.88 : 1,672,040.37 = 667,807.02 : x
  2. Step 2: Convert to fraction form
    1,211,672.88/1,672,040.37 = 667,807.02/x
  3. Step 3: Cross multiply
    1,211,672.88x = 1,672,040.37 × 667,807.02
  4. Step 4: Simplify right side
    1,211,672.88x = 1,116,600,296,809.40
  5. Step 5: Solve for x
    x = 1,116,600,296,809.40/1,211,672.88
  6. Step 6: Final answer
    x = 921,536.10

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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.