Home / 398,823.63-598,106.04-132,512.64

Finding the Fourth Proportional to 398,823.63, 598,106.04 and 132,512.64

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Solution

The fourth proportional to 398,823.63, 598,106.04 and 132,512.64 is: 198,725.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,823.63 : 598,106.04 = 132,512.64 : x
  2. Step 2: Convert to fraction form
    398,823.63/598,106.04 = 132,512.64/x
  3. Step 3: Cross multiply
    398,823.63x = 598,106.04 × 132,512.64
  4. Step 4: Simplify right side
    398,823.63x = 79,256,610,360.35
  5. Step 5: Solve for x
    x = 79,256,610,360.35/398,823.63
  6. Step 6: Final answer
    x = 198,725.96

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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.