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Finding the Fourth Proportional to 631,989.45, 947,791.38 and 332,307.45

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Solution

The fourth proportional to 631,989.45, 947,791.38 and 332,307.45 is: 498,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,989.45 : 947,791.38 = 332,307.45 : x
  2. Step 2: Convert to fraction form
    631,989.45/947,791.38 = 332,307.45/x
  3. Step 3: Cross multiply
    631,989.45x = 947,791.38 × 332,307.45
  4. Step 4: Simplify right side
    631,989.45x = 314,958,136,619.78
  5. Step 5: Solve for x
    x = 314,958,136,619.78/631,989.45
  6. Step 6: Final answer
    x = 498,359.80

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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.