Home / 398,014.02-597,309.59-298,442.34

Finding the Fourth Proportional to 398,014.02, 597,309.59 and 298,442.34

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Solution

The fourth proportional to 398,014.02, 597,309.59 and 298,442.34 is: 447,879.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,014.02 : 597,309.59 = 298,442.34 : x
  2. Step 2: Convert to fraction form
    398,014.02/597,309.59 = 298,442.34/x
  3. Step 3: Cross multiply
    398,014.02x = 597,309.59 × 298,442.34
  4. Step 4: Simplify right side
    398,014.02x = 178,262,472,490.15
  5. Step 5: Solve for x
    x = 178,262,472,490.15/398,014.02
  6. Step 6: Final answer
    x = 447,879.88

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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.