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Finding the Fourth Proportional to 428,999.22, 592,007.64 and 235,406.32

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Solution

The fourth proportional to 428,999.22, 592,007.64 and 235,406.32 is: 324,854.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,999.22 : 592,007.64 = 235,406.32 : x
  2. Step 2: Convert to fraction form
    428,999.22/592,007.64 = 235,406.32/x
  3. Step 3: Cross multiply
    428,999.22x = 592,007.64 × 235,406.32
  4. Step 4: Simplify right side
    428,999.22x = 139,362,339,944.29
  5. Step 5: Solve for x
    x = 139,362,339,944.29/428,999.22
  6. Step 6: Final answer
    x = 324,854.53

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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.