Home / 631,681.20-947,571.48-210,958.56

Finding the Fourth Proportional to 631,681.20, 947,571.48 and 210,958.56

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Solution

The fourth proportional to 631,681.20, 947,571.48 and 210,958.56 is: 316,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,681.20 : 947,571.48 = 210,958.56 : x
  2. Step 2: Convert to fraction form
    631,681.20/947,571.48 = 210,958.56/x
  3. Step 3: Cross multiply
    631,681.20x = 947,571.48 × 210,958.56
  4. Step 4: Simplify right side
    631,681.20x = 199,898,314,917.87
  5. Step 5: Solve for x
    x = 199,898,314,917.87/631,681.20
  6. Step 6: Final answer
    x = 316,454.43

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1.5x scale

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.