Finding the Fourth Proportional to 2,376,642.48, 3,279,744.30 and 1,288,938.06
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Solution
The fourth proportional to 2,376,642.48, 3,279,744.30 and 1,288,938.06 is: 1,778,722.42
Step by Step Solution
- Step 1: Write the proportion equation
2,376,642.48 : 3,279,744.30 = 1,288,938.06 : x - Step 2: Convert to fraction form
2,376,642.48/3,279,744.30 = 1,288,938.06/x - Step 3: Cross multiply
2,376,642.48x = 3,279,744.30 × 1,288,938.06 - Step 4: Simplify right side
2,376,642.48x = 4,227,387,255,338.06 - Step 5: Solve for x
x = 4,227,387,255,338.06/2,376,642.48 - Step 6: Final answer
x = 1,778,722.42
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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.