Home / 428,611.02-591,490.01-235,036.34

Finding the Fourth Proportional to 428,611.02, 591,490.01 and 235,036.34

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Solution

The fourth proportional to 428,611.02, 591,490.01 and 235,036.34 is: 324,353.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,611.02 : 591,490.01 = 235,036.34 : x
  2. Step 2: Convert to fraction form
    428,611.02/591,490.01 = 235,036.34/x
  3. Step 3: Cross multiply
    428,611.02x = 591,490.01 × 235,036.34
  4. Step 4: Simplify right side
    428,611.02x = 139,021,647,096.96
  5. Step 5: Solve for x
    x = 139,021,647,096.96/428,611.02
  6. Step 6: Final answer
    x = 324,353.88

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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.