Home / 989,859.84-1,485,020.16-324,971.52

Finding the Fourth Proportional to 989,859.84, 1,485,020.16 and 324,971.52

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Solution

The fourth proportional to 989,859.84, 1,485,020.16 and 324,971.52 is: 487,532.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,859.84 : 1,485,020.16 = 324,971.52 : x
  2. Step 2: Convert to fraction form
    989,859.84/1,485,020.16 = 324,971.52/x
  3. Step 3: Cross multiply
    989,859.84x = 1,485,020.16 × 324,971.52
  4. Step 4: Simplify right side
    989,859.84x = 482,589,258,625.84
  5. Step 5: Solve for x
    x = 482,589,258,625.84/989,859.84
  6. Step 6: Final answer
    x = 487,532.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.