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Finding the Fourth Proportional to 629,728.60, 944,420.16 and 376,810.12

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Solution

The fourth proportional to 629,728.60, 944,420.16 and 376,810.12 is: 565,111.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,728.60 : 944,420.16 = 376,810.12 : x
  2. Step 2: Convert to fraction form
    629,728.60/944,420.16 = 376,810.12/x
  3. Step 3: Cross multiply
    629,728.60x = 944,420.16 × 376,810.12
  4. Step 4: Simplify right side
    629,728.60x = 355,867,073,820.02
  5. Step 5: Solve for x
    x = 355,867,073,820.02/629,728.60
  6. Step 6: Final answer
    x = 565,111.82

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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.