Home / 1,072,912.05-1,480,002.66-669,804.21

Finding the Fourth Proportional to 1,072,912.05, 1,480,002.66 and 669,804.21

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Solution

The fourth proportional to 1,072,912.05, 1,480,002.66 and 669,804.21 is: 923,945.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,912.05 : 1,480,002.66 = 669,804.21 : x
  2. Step 2: Convert to fraction form
    1,072,912.05/1,480,002.66 = 669,804.21/x
  3. Step 3: Cross multiply
    1,072,912.05x = 1,480,002.66 × 669,804.21
  4. Step 4: Simplify right side
    1,072,912.05x = 991,312,012,479.20
  5. Step 5: Solve for x
    x = 991,312,012,479.20/1,072,912.05
  6. Step 6: Final answer
    x = 923,945.27

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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.