Home / 421,979.02-632,968.56-126,491.02

Finding the Fourth Proportional to 421,979.02, 632,968.56 and 126,491.02

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Solution

The fourth proportional to 421,979.02, 632,968.56 and 126,491.02 is: 189,736.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,979.02 : 632,968.56 = 126,491.02 : x
  2. Step 2: Convert to fraction form
    421,979.02/632,968.56 = 126,491.02/x
  3. Step 3: Cross multiply
    421,979.02x = 632,968.56 × 126,491.02
  4. Step 4: Simplify right side
    421,979.02x = 80,064,838,782.33
  5. Step 5: Solve for x
    x = 80,064,838,782.33/421,979.02
  6. Step 6: Final answer
    x = 189,736.54

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Similar ratio
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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.