Finding the Fourth Proportional to 713,021.05, 1,069,666.44 and 286,590.07
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Solution
The fourth proportional to 713,021.05, 1,069,666.44 and 286,590.07 is: 429,939.31
Step by Step Solution
- Step 1: Write the proportion equation
713,021.05 : 1,069,666.44 = 286,590.07 : x - Step 2: Convert to fraction form
713,021.05/1,069,666.44 = 286,590.07/x - Step 3: Cross multiply
713,021.05x = 1,069,666.44 × 286,590.07 - Step 4: Simplify right side
713,021.05x = 306,555,777,242.09 - Step 5: Solve for x
x = 306,555,777,242.09/713,021.05 - Step 6: Final answer
x = 429,939.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.