Finding the Fourth Proportional to 992,087.68, 1,488,374.58 and 318,170.92
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Solution
The fourth proportional to 992,087.68, 1,488,374.58 and 318,170.92 is: 477,334.33
Step by Step Solution
- Step 1: Write the proportion equation
992,087.68 : 1,488,374.58 = 318,170.92 : x - Step 2: Convert to fraction form
992,087.68/1,488,374.58 = 318,170.92/x - Step 3: Cross multiply
992,087.68x = 1,488,374.58 × 318,170.92 - Step 4: Simplify right side
992,087.68x = 473,557,509,423.21 - Step 5: Solve for x
x = 473,557,509,423.21/992,087.68 - Step 6: Final answer
x = 477,334.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.