Home / 428,148.38-590,284.67-368,361.27

Finding the Fourth Proportional to 428,148.38, 590,284.67 and 368,361.27

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Solution

The fourth proportional to 428,148.38, 590,284.67 and 368,361.27 is: 507,856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,148.38 : 590,284.67 = 368,361.27 : x
  2. Step 2: Convert to fraction form
    428,148.38/590,284.67 = 368,361.27/x
  3. Step 3: Cross multiply
    428,148.38x = 590,284.67 × 368,361.27
  4. Step 4: Simplify right side
    428,148.38x = 217,438,008,860.93
  5. Step 5: Solve for x
    x = 217,438,008,860.93/428,148.38
  6. Step 6: Final answer
    x = 507,856.66

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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.