Home / 819,136.94-1,229,258.75-286,662.58

Finding the Fourth Proportional to 819,136.94, 1,229,258.75 and 286,662.58

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Solution

The fourth proportional to 819,136.94, 1,229,258.75 and 286,662.58 is: 430,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,136.94 : 1,229,258.75 = 286,662.58 : x
  2. Step 2: Convert to fraction form
    819,136.94/1,229,258.75 = 286,662.58/x
  3. Step 3: Cross multiply
    819,136.94x = 1,229,258.75 × 286,662.58
  4. Step 4: Simplify right side
    819,136.94x = 352,382,480,256.12
  5. Step 5: Solve for x
    x = 352,382,480,256.12/819,136.94
  6. Step 6: Final answer
    x = 430,187.51

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1.5x scale

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.