Finding the Fourth Proportional to 713,933.36, 985,235.64 and 391,644.08
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Solution
The fourth proportional to 713,933.36, 985,235.64 and 391,644.08 is: 540,473.00
Step by Step Solution
- Step 1: Write the proportion equation
713,933.36 : 985,235.64 = 391,644.08 : x - Step 2: Convert to fraction form
713,933.36/985,235.64 = 391,644.08/x - Step 3: Cross multiply
713,933.36x = 985,235.64 × 391,644.08 - Step 4: Simplify right side
713,933.36x = 385,861,705,811.01 - Step 5: Solve for x
x = 385,861,705,811.01/713,933.36 - Step 6: Final answer
x = 540,473.00
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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.