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Finding the Fourth Proportional to 1,072,900.03, 1,479,986.14 and 669,792.19

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Solution

The fourth proportional to 1,072,900.03, 1,479,986.14 and 669,792.19 is: 923,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,900.03 : 1,479,986.14 = 669,792.19 : x
  2. Step 2: Convert to fraction form
    1,072,900.03/1,479,986.14 = 669,792.19/x
  3. Step 3: Cross multiply
    1,072,900.03x = 1,479,986.14 × 669,792.19
  4. Step 4: Simplify right side
    1,072,900.03x = 991,283,157,880.25
  5. Step 5: Solve for x
    x = 991,283,157,880.25/1,072,900.03
  6. Step 6: Final answer
    x = 923,928.73

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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.