Finding the Fourth Proportional to 3,933,811.72, 5,901,767.62 and 1,409,722.12
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Solution
The fourth proportional to 3,933,811.72, 5,901,767.62 and 1,409,722.12 is: 2,114,959.47
Step by Step Solution
- Step 1: Write the proportion equation
3,933,811.72 : 5,901,767.62 = 1,409,722.12 : x - Step 2: Convert to fraction form
3,933,811.72/5,901,767.62 = 1,409,722.12/x - Step 3: Cross multiply
3,933,811.72x = 5,901,767.62 × 1,409,722.12 - Step 4: Simplify right side
3,933,811.72x = 8,319,852,361,013.76 - Step 5: Solve for x
x = 8,319,852,361,013.76/3,933,811.72 - Step 6: Final answer
x = 2,114,959.47
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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.