Finding the Fourth Proportional to 898,186.16, 1,239,311.79 and 516,139.13
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Solution
The fourth proportional to 898,186.16, 1,239,311.79 and 516,139.13 is: 712,165.62
Step by Step Solution
- Step 1: Write the proportion equation
898,186.16 : 1,239,311.79 = 516,139.13 : x - Step 2: Convert to fraction form
898,186.16/1,239,311.79 = 516,139.13/x - Step 3: Cross multiply
898,186.16x = 1,239,311.79 × 516,139.13 - Step 4: Simplify right side
898,186.16x = 639,657,302,892.78 - Step 5: Solve for x
x = 639,657,302,892.78/898,186.16 - Step 6: Final answer
x = 712,165.62
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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.