Finding the Fourth Proportional to 991,599.58, 1,367,940.72 and 719,069.68
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Solution
The fourth proportional to 991,599.58, 1,367,940.72 and 719,069.68 is: 991,977.73
Step by Step Solution
- Step 1: Write the proportion equation
991,599.58 : 1,367,940.72 = 719,069.68 : x - Step 2: Convert to fraction form
991,599.58/1,367,940.72 = 719,069.68/x - Step 3: Cross multiply
991,599.58x = 1,367,940.72 × 719,069.68 - Step 4: Simplify right side
991,599.58x = 983,644,695,789.37 - Step 5: Solve for x
x = 983,644,695,789.37/991,599.58 - Step 6: Final answer
x = 991,977.73
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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.