Finding the Fourth Proportional to 684,331.79, 1,026,722.57 and 279,864.23
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Solution
The fourth proportional to 684,331.79, 1,026,722.57 and 279,864.23 is: 419,888.32
Step by Step Solution
- Step 1: Write the proportion equation
684,331.79 : 1,026,722.57 = 279,864.23 : x - Step 2: Convert to fraction form
684,331.79/1,026,722.57 = 279,864.23/x - Step 3: Cross multiply
684,331.79x = 1,026,722.57 × 279,864.23 - Step 4: Simplify right side
684,331.79x = 287,342,924,743.14 - Step 5: Solve for x
x = 287,342,924,743.14/684,331.79 - Step 6: Final answer
x = 419,888.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.