Finding the Fourth Proportional to 493,506.92, 680,988.84 and 286,743.08
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Solution
The fourth proportional to 493,506.92, 680,988.84 and 286,743.08 is: 395,675.99
Step by Step Solution
- Step 1: Write the proportion equation
493,506.92 : 680,988.84 = 286,743.08 : x - Step 2: Convert to fraction form
493,506.92/680,988.84 = 286,743.08/x - Step 3: Cross multiply
493,506.92x = 680,988.84 × 286,743.08 - Step 4: Simplify right side
493,506.92x = 195,268,837,427.23 - Step 5: Solve for x
x = 195,268,837,427.23/493,506.92 - Step 6: Final answer
x = 395,675.99
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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.