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Finding the Fourth Proportional to 428,340.99, 591,110.53 and 237,354.37

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Solution

The fourth proportional to 428,340.99, 591,110.53 and 237,354.37 is: 327,549.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,340.99 : 591,110.53 = 237,354.37 : x
  2. Step 2: Convert to fraction form
    428,340.99/591,110.53 = 237,354.37/x
  3. Step 3: Cross multiply
    428,340.99x = 591,110.53 × 237,354.37
  4. Step 4: Simplify right side
    428,340.99x = 140,302,665,377.35
  5. Step 5: Solve for x
    x = 140,302,665,377.35/428,340.99
  6. Step 6: Final answer
    x = 327,549.00

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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.