Home / 428,678.73-591,582.69-235,103.31

Finding the Fourth Proportional to 428,678.73, 591,582.69 and 235,103.31

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Solution

The fourth proportional to 428,678.73, 591,582.69 and 235,103.31 is: 324,445.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,678.73 : 591,582.69 = 235,103.31 : x
  2. Step 2: Convert to fraction form
    428,678.73/591,582.69 = 235,103.31/x
  3. Step 3: Cross multiply
    428,678.73x = 591,582.69 × 235,103.31
  4. Step 4: Simplify right side
    428,678.73x = 139,083,048,557.70
  5. Step 5: Solve for x
    x = 139,083,048,557.70/428,678.73
  6. Step 6: Final answer
    x = 324,445.88

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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.