Home / 939,630.46-1,296,690.85-509,910.58

Finding the Fourth Proportional to 939,630.46, 1,296,690.85 and 509,910.58

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Solution

The fourth proportional to 939,630.46, 1,296,690.85 and 509,910.58 is: 703,677.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,630.46 : 1,296,690.85 = 509,910.58 : x
  2. Step 2: Convert to fraction form
    939,630.46/1,296,690.85 = 509,910.58/x
  3. Step 3: Cross multiply
    939,630.46x = 1,296,690.85 × 509,910.58
  4. Step 4: Simplify right side
    939,630.46x = 661,196,383,404.19
  5. Step 5: Solve for x
    x = 661,196,383,404.19/939,630.46
  6. Step 6: Final answer
    x = 703,677.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.