Finding the Fourth Proportional to 493,722.08, 681,343.12 and 275,921.20
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Solution
The fourth proportional to 493,722.08, 681,343.12 and 275,921.20 is: 380,774.97
Step by Step Solution
- Step 1: Write the proportion equation
493,722.08 : 681,343.12 = 275,921.20 : x - Step 2: Convert to fraction form
493,722.08/681,343.12 = 275,921.20/x - Step 3: Cross multiply
493,722.08x = 681,343.12 × 275,921.20 - Step 4: Simplify right side
493,722.08x = 187,997,011,282.14 - Step 5: Solve for x
x = 187,997,011,282.14/493,722.08 - Step 6: Final answer
x = 380,774.97
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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.