Finding the Fourth Proportional to 873,682.63, 1,205,482.57 and 491,569.99
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Solution
The fourth proportional to 873,682.63, 1,205,482.57 and 491,569.99 is: 678,254.36
Step by Step Solution
- Step 1: Write the proportion equation
873,682.63 : 1,205,482.57 = 491,569.99 : x - Step 2: Convert to fraction form
873,682.63/1,205,482.57 = 491,569.99/x - Step 3: Cross multiply
873,682.63x = 1,205,482.57 × 491,569.99 - Step 4: Simplify right side
873,682.63x = 592,579,054,880.07 - Step 5: Solve for x
x = 592,579,054,880.07/873,682.63 - Step 6: Final answer
x = 678,254.36
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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.