Home / 939,612.50-1,296,668.66-509,892.52

Finding the Fourth Proportional to 939,612.50, 1,296,668.66 and 509,892.52

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Solution

The fourth proportional to 939,612.50, 1,296,668.66 and 509,892.52 is: 703,653.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,612.50 : 1,296,668.66 = 509,892.52 : x
  2. Step 2: Convert to fraction form
    939,612.50/1,296,668.66 = 509,892.52/x
  3. Step 3: Cross multiply
    939,612.50x = 1,296,668.66 × 509,892.52
  4. Step 4: Simplify right side
    939,612.50x = 661,161,647,292.54
  5. Step 5: Solve for x
    x = 661,161,647,292.54/939,612.50
  6. Step 6: Final answer
    x = 703,653.52

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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.