Finding the Fourth Proportional to 684,646.25, 944,493.68 and 443,006.75
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Solution
The fourth proportional to 684,646.25, 944,493.68 and 443,006.75 is: 611,143.47
Step by Step Solution
- Step 1: Write the proportion equation
684,646.25 : 944,493.68 = 443,006.75 : x - Step 2: Convert to fraction form
684,646.25/944,493.68 = 443,006.75/x - Step 3: Cross multiply
684,646.25x = 944,493.68 × 443,006.75 - Step 4: Simplify right side
684,646.25x = 418,417,079,041.09 - Step 5: Solve for x
x = 418,417,079,041.09/684,646.25 - Step 6: Final answer
x = 611,143.47
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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.