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Finding the Fourth Proportional to 691,716.72, 954,929.88 and 490,992.24

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Solution

The fourth proportional to 691,716.72, 954,929.88 and 490,992.24 is: 677,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,716.72 : 954,929.88 = 490,992.24 : x
  2. Step 2: Convert to fraction form
    691,716.72/954,929.88 = 490,992.24/x
  3. Step 3: Cross multiply
    691,716.72x = 954,929.88 × 490,992.24
  4. Step 4: Simplify right side
    691,716.72x = 468,863,160,824.13
  5. Step 5: Solve for x
    x = 468,863,160,824.13/691,716.72
  6. Step 6: Final answer
    x = 677,825.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.