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Finding the Fourth Proportional to 629,188.16, 942,023.76 and 339,963.80

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Solution

The fourth proportional to 629,188.16, 942,023.76 and 339,963.80 is: 508,995.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,188.16 : 942,023.76 = 339,963.80 : x
  2. Step 2: Convert to fraction form
    629,188.16/942,023.76 = 339,963.80/x
  3. Step 3: Cross multiply
    629,188.16x = 942,023.76 × 339,963.80
  4. Step 4: Simplify right side
    629,188.16x = 320,253,977,139.89
  5. Step 5: Solve for x
    x = 320,253,977,139.89/629,188.16
  6. Step 6: Final answer
    x = 508,995.56

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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.