Finding the Fourth Proportional to 567,387.99, 782,986.10 and 312,762.87
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Solution
The fourth proportional to 567,387.99, 782,986.10 and 312,762.87 is: 431,607.62
Step by Step Solution
- Step 1: Write the proportion equation
567,387.99 : 782,986.10 = 312,762.87 : x - Step 2: Convert to fraction form
567,387.99/782,986.10 = 312,762.87/x - Step 3: Cross multiply
567,387.99x = 782,986.10 × 312,762.87 - Step 4: Simplify right side
567,387.99x = 244,888,978,242.29 - Step 5: Solve for x
x = 244,888,978,242.29/567,387.99 - Step 6: Final answer
x = 431,607.62
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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.