Finding the Fourth Proportional to 761,731.96, 1,142,742.54 and 306,358.12
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Solution
The fourth proportional to 761,731.96, 1,142,742.54 and 306,358.12 is: 459,595.34
Step by Step Solution
- Step 1: Write the proportion equation
761,731.96 : 1,142,742.54 = 306,358.12 : x - Step 2: Convert to fraction form
761,731.96/1,142,742.54 = 306,358.12/x - Step 3: Cross multiply
761,731.96x = 1,142,742.54 × 306,358.12 - Step 4: Simplify right side
761,731.96x = 350,088,456,198.43 - Step 5: Solve for x
x = 350,088,456,198.43/761,731.96 - Step 6: Final answer
x = 459,595.34
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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.