Home / 939,668.50-1,296,743.48-509,948.72

Finding the Fourth Proportional to 939,668.50, 1,296,743.48 and 509,948.72

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Solution

The fourth proportional to 939,668.50, 1,296,743.48 and 509,948.72 is: 703,729.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,668.50 : 1,296,743.48 = 509,948.72 : x
  2. Step 2: Convert to fraction form
    939,668.50/1,296,743.48 = 509,948.72/x
  3. Step 3: Cross multiply
    939,668.50x = 1,296,743.48 × 509,948.72
  4. Step 4: Simplify right side
    939,668.50x = 661,272,677,794.35
  5. Step 5: Solve for x
    x = 661,272,677,794.35/939,668.50
  6. Step 6: Final answer
    x = 703,729.75

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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.