Finding the Fourth Proportional to 519,556.91, 717,483.68 and 491,251.83
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Solution
The fourth proportional to 519,556.91, 717,483.68 and 491,251.83 is: 678,395.69
Step by Step Solution
- Step 1: Write the proportion equation
519,556.91 : 717,483.68 = 491,251.83 : x - Step 2: Convert to fraction form
519,556.91/717,483.68 = 491,251.83/x - Step 3: Cross multiply
519,556.91x = 717,483.68 × 491,251.83 - Step 4: Simplify right side
519,556.91x = 352,465,170,795.13 - Step 5: Solve for x
x = 352,465,170,795.13/519,556.91 - Step 6: Final answer
x = 678,395.69
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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.