Finding the Fourth Proportional to 709,534.68, 979,160.57 and 387,251.88
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Solution
The fourth proportional to 709,534.68, 979,160.57 and 387,251.88 is: 534,409.07
Step by Step Solution
- Step 1: Write the proportion equation
709,534.68 : 979,160.57 = 387,251.88 : x - Step 2: Convert to fraction form
709,534.68/979,160.57 = 387,251.88/x - Step 3: Cross multiply
709,534.68x = 979,160.57 × 387,251.88 - Step 4: Simplify right side
709,534.68x = 379,181,771,554.37 - Step 5: Solve for x
x = 379,181,771,554.37/709,534.68 - Step 6: Final answer
x = 534,409.07
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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.