Home / 392,988.02-589,469.54-108,695.70

Finding the Fourth Proportional to 392,988.02, 589,469.54 and 108,695.70

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Solution

The fourth proportional to 392,988.02, 589,469.54 and 108,695.70 is: 163,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,988.02 : 589,469.54 = 108,695.70 : x
  2. Step 2: Convert to fraction form
    392,988.02/589,469.54 = 108,695.70/x
  3. Step 3: Cross multiply
    392,988.02x = 589,469.54 × 108,695.70
  4. Step 4: Simplify right side
    392,988.02x = 64,072,803,735.50
  5. Step 5: Solve for x
    x = 64,072,803,735.50/392,988.02
  6. Step 6: Final answer
    x = 163,040.10

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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.