Home / 1,992,792.64-2,989,169.16-912,998.88

Finding the Fourth Proportional to 1,992,792.64, 2,989,169.16 and 912,998.88

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Solution

The fourth proportional to 1,992,792.64, 2,989,169.16 and 912,998.88 is: 1,369,489.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,792.64 : 2,989,169.16 = 912,998.88 : x
  2. Step 2: Convert to fraction form
    1,992,792.64/2,989,169.16 = 912,998.88/x
  3. Step 3: Cross multiply
    1,992,792.64x = 2,989,169.16 × 912,998.88
  4. Step 4: Simplify right side
    1,992,792.64x = 2,729,108,095,210.54
  5. Step 5: Solve for x
    x = 2,729,108,095,210.54/1,992,792.64
  6. Step 6: Final answer
    x = 1,369,489.25

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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.