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Finding the Fourth Proportional to 428,992.38, 592,017.08 and 235,409.62

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Solution

The fourth proportional to 428,992.38, 592,017.08 and 235,409.62 is: 324,869.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,992.38 : 592,017.08 = 235,409.62 : x
  2. Step 2: Convert to fraction form
    428,992.38/592,017.08 = 235,409.62/x
  3. Step 3: Cross multiply
    428,992.38x = 592,017.08 × 235,409.62
  4. Step 4: Simplify right side
    428,992.38x = 139,366,515,836.31
  5. Step 5: Solve for x
    x = 139,366,515,836.31/428,992.38
  6. Step 6: Final answer
    x = 324,869.44

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1.5x scale

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.