Home / 631,748.64-947,583.92-210,989.28

Finding the Fourth Proportional to 631,748.64, 947,583.92 and 210,989.28

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Solution

The fourth proportional to 631,748.64, 947,583.92 and 210,989.28 is: 316,470.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,748.64 : 947,583.92 = 210,989.28 : x
  2. Step 2: Convert to fraction form
    631,748.64/947,583.92 = 210,989.28/x
  3. Step 3: Cross multiply
    631,748.64x = 947,583.92 × 210,989.28
  4. Step 4: Simplify right side
    631,748.64x = 199,930,049,020.38
  5. Step 5: Solve for x
    x = 199,930,049,020.38/631,748.64
  6. Step 6: Final answer
    x = 316,470.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.