Home / 428,740.64-591,695.52-237,791.36

Finding the Fourth Proportional to 428,740.64, 591,695.52 and 237,791.36

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Solution

The fourth proportional to 428,740.64, 591,695.52 and 237,791.36 is: 328,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,740.64 : 591,695.52 = 237,791.36 : x
  2. Step 2: Convert to fraction form
    428,740.64/591,695.52 = 237,791.36/x
  3. Step 3: Cross multiply
    428,740.64x = 591,695.52 × 237,791.36
  4. Step 4: Simplify right side
    428,740.64x = 140,700,082,406.71
  5. Step 5: Solve for x
    x = 140,700,082,406.71/428,740.64
  6. Step 6: Final answer
    x = 328,170.62

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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.