Finding the Fourth Proportional to 991,598.58, 1,367,939.34 and 719,068.68
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Solution
The fourth proportional to 991,598.58, 1,367,939.34 and 719,068.68 is: 991,976.35
Step by Step Solution
- Step 1: Write the proportion equation
991,598.58 : 1,367,939.34 = 719,068.68 : x - Step 2: Convert to fraction form
991,598.58/1,367,939.34 = 719,068.68/x - Step 3: Cross multiply
991,598.58x = 1,367,939.34 × 719,068.68 - Step 4: Simplify right side
991,598.58x = 983,642,335,533.87 - Step 5: Solve for x
x = 983,642,335,533.87/991,598.58 - Step 6: Final answer
x = 991,976.35
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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.