Home / 329,927.22-455,096.61-287,586.90

Finding the Fourth Proportional to 329,927.22, 455,096.61 and 287,586.90

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Solution

The fourth proportional to 329,927.22, 455,096.61 and 287,586.90 is: 396,693.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,927.22 : 455,096.61 = 287,586.90 : x
  2. Step 2: Convert to fraction form
    329,927.22/455,096.61 = 287,586.90/x
  3. Step 3: Cross multiply
    329,927.22x = 455,096.61 × 287,586.90
  4. Step 4: Simplify right side
    329,927.22x = 130,879,823,270.41
  5. Step 5: Solve for x
    x = 130,879,823,270.41/329,927.22
  6. Step 6: Final answer
    x = 396,693.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.