Finding the Fourth Proportional to 761,730.96, 1,142,741.04 and 306,357.12
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Solution
The fourth proportional to 761,730.96, 1,142,741.04 and 306,357.12 is: 459,593.84
Step by Step Solution
- Step 1: Write the proportion equation
761,730.96 : 1,142,741.04 = 306,357.12 : x - Step 2: Convert to fraction form
761,730.96/1,142,741.04 = 306,357.12/x - Step 3: Cross multiply
761,730.96x = 1,142,741.04 × 306,357.12 - Step 4: Simplify right side
761,730.96x = 350,086,853,920.21 - Step 5: Solve for x
x = 350,086,853,920.21/761,730.96 - Step 6: Final answer
x = 459,593.84
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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.