Home / 645,913.88-968,588.38-325,868.84

Finding the Fourth Proportional to 645,913.88, 968,588.38 and 325,868.84

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Solution

The fourth proportional to 645,913.88, 968,588.38 and 325,868.84 is: 488,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,913.88 : 968,588.38 = 325,868.84 : x
  2. Step 2: Convert to fraction form
    645,913.88/968,588.38 = 325,868.84/x
  3. Step 3: Cross multiply
    645,913.88x = 968,588.38 × 325,868.84
  4. Step 4: Simplify right side
    645,913.88x = 315,632,771,828.08
  5. Step 5: Solve for x
    x = 315,632,771,828.08/645,913.88
  6. Step 6: Final answer
    x = 488,660.77

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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.