Home / 1,196,809.20-1,651,880.16-687,806.64

Finding the Fourth Proportional to 1,196,809.20, 1,651,880.16 and 687,806.64

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Solution

The fourth proportional to 1,196,809.20, 1,651,880.16 and 687,806.64 is: 949,336.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,809.20 : 1,651,880.16 = 687,806.64 : x
  2. Step 2: Convert to fraction form
    1,196,809.20/1,651,880.16 = 687,806.64/x
  3. Step 3: Cross multiply
    1,196,809.20x = 1,651,880.16 × 687,806.64
  4. Step 4: Simplify right side
    1,196,809.20x = 1,136,174,142,532.26
  5. Step 5: Solve for x
    x = 1,136,174,142,532.26/1,196,809.20
  6. Step 6: Final answer
    x = 949,336.07

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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.