Home / 939,310.84-1,296,249.43-509,590.85

Finding the Fourth Proportional to 939,310.84, 1,296,249.43 and 509,590.85

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Solution

The fourth proportional to 939,310.84, 1,296,249.43 and 509,590.85 is: 703,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,310.84 : 1,296,249.43 = 509,590.85 : x
  2. Step 2: Convert to fraction form
    939,310.84/1,296,249.43 = 509,590.85/x
  3. Step 3: Cross multiply
    939,310.84x = 1,296,249.43 × 509,590.85
  4. Step 4: Simplify right side
    939,310.84x = 660,556,850,812.36
  5. Step 5: Solve for x
    x = 660,556,850,812.36/939,310.84
  6. Step 6: Final answer
    x = 703,235.63

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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.