Home / 428,505.46-591,343.48-234,931.36

Finding the Fourth Proportional to 428,505.46, 591,343.48 and 234,931.36

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Solution

The fourth proportional to 428,505.46, 591,343.48 and 234,931.36 is: 324,208.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,505.46 : 591,343.48 = 234,931.36 : x
  2. Step 2: Convert to fraction form
    428,505.46/591,343.48 = 234,931.36/x
  3. Step 3: Cross multiply
    428,505.46x = 591,343.48 × 234,931.36
  4. Step 4: Simplify right side
    428,505.46x = 138,925,127,983.53
  5. Step 5: Solve for x
    x = 138,925,127,983.53/428,505.46
  6. Step 6: Final answer
    x = 324,208.54

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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.