Finding the Fourth Proportional to 815,559.99, 1,125,561 and 493,447.70
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Solution
The fourth proportional to 815,559.99, 1,125,561 and 493,447.70 is: 681,011.19
Step by Step Solution
- Step 1: Write the proportion equation
815,559.99 : 1,125,561 = 493,447.70 : x - Step 2: Convert to fraction form
815,559.99/1,125,561 = 493,447.70/x - Step 3: Cross multiply
815,559.99x = 1,125,561 × 493,447.70 - Step 4: Simplify right side
815,559.99x = 555,405,481,031.90 - Step 5: Solve for x
x = 555,405,481,031.90/815,559.99 - Step 6: Final answer
x = 681,011.19
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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.