Home / 1,228,727.16-1,695,639.60-684,856.80

Finding the Fourth Proportional to 1,228,727.16, 1,695,639.60 and 684,856.80

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Solution

The fourth proportional to 1,228,727.16, 1,695,639.60 and 684,856.80 is: 945,100.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,727.16 : 1,695,639.60 = 684,856.80 : x
  2. Step 2: Convert to fraction form
    1,228,727.16/1,695,639.60 = 684,856.80/x
  3. Step 3: Cross multiply
    1,228,727.16x = 1,695,639.60 × 684,856.80
  4. Step 4: Simplify right side
    1,228,727.16x = 1,161,270,310,409.28
  5. Step 5: Solve for x
    x = 1,161,270,310,409.28/1,228,727.16
  6. Step 6: Final answer
    x = 945,100.22

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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.