Finding the Fourth Proportional to 2,376,439.60, 3,279,487.41 and 1,288,710.85
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Solution
The fourth proportional to 2,376,439.60, 3,279,487.41 and 1,288,710.85 is: 1,778,421.38
Step by Step Solution
- Step 1: Write the proportion equation
2,376,439.60 : 3,279,487.41 = 1,288,710.85 : x - Step 2: Convert to fraction form
2,376,439.60/3,279,487.41 = 1,288,710.85/x - Step 3: Cross multiply
2,376,439.60x = 3,279,487.41 × 1,288,710.85 - Step 4: Simplify right side
2,376,439.60x = 4,226,310,999,506.68 - Step 5: Solve for x
x = 4,226,310,999,506.68/2,376,439.60 - Step 6: Final answer
x = 1,778,421.38
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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.