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Finding the Fourth Proportional to 569,369.39, 785,729.63 and 311,247.41

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Solution

The fourth proportional to 569,369.39, 785,729.63 and 311,247.41 is: 429,521.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,369.39 : 785,729.63 = 311,247.41 : x
  2. Step 2: Convert to fraction form
    569,369.39/785,729.63 = 311,247.41/x
  3. Step 3: Cross multiply
    569,369.39x = 785,729.63 × 311,247.41
  4. Step 4: Simplify right side
    569,369.39x = 244,556,310,741.52
  5. Step 5: Solve for x
    x = 244,556,310,741.52/569,369.39
  6. Step 6: Final answer
    x = 429,521.36

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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.