Finding the Fourth Proportional to 705,381.12, 973,485.99 and 399,511.92
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Solution
The fourth proportional to 705,381.12, 973,485.99 and 399,511.92 is: 551,360.45
Step by Step Solution
- Step 1: Write the proportion equation
705,381.12 : 973,485.99 = 399,511.92 : x - Step 2: Convert to fraction form
705,381.12/973,485.99 = 399,511.92/x - Step 3: Cross multiply
705,381.12x = 973,485.99 × 399,511.92 - Step 4: Simplify right side
705,381.12x = 388,919,250,093.01 - Step 5: Solve for x
x = 388,919,250,093.01/705,381.12 - Step 6: Final answer
x = 551,360.45
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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.