Finding the Fourth Proportional to 512,809.58, 707,677.19 and 286,455.08
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Solution
The fourth proportional to 512,809.58, 707,677.19 and 286,455.08 is: 395,307.99
Step by Step Solution
- Step 1: Write the proportion equation
512,809.58 : 707,677.19 = 286,455.08 : x - Step 2: Convert to fraction form
512,809.58/707,677.19 = 286,455.08/x - Step 3: Cross multiply
512,809.58x = 707,677.19 × 286,455.08 - Step 4: Simplify right side
512,809.58x = 202,717,726,075.63 - Step 5: Solve for x
x = 202,717,726,075.63/512,809.58 - Step 6: Final answer
x = 395,307.99
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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.