Finding the Fourth Proportional to 2,378,965.80, 3,282,884.84 and 1,291,214.19
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Solution
The fourth proportional to 2,378,965.80, 3,282,884.84 and 1,291,214.19 is: 1,781,827.84
Step by Step Solution
- Step 1: Write the proportion equation
2,378,965.80 : 3,282,884.84 = 1,291,214.19 : x - Step 2: Convert to fraction form
2,378,965.80/3,282,884.84 = 1,291,214.19/x - Step 3: Cross multiply
2,378,965.80x = 3,282,884.84 × 1,291,214.19 - Step 4: Simplify right side
2,378,965.80x = 4,238,907,483,087.81 - Step 5: Solve for x
x = 4,238,907,483,087.81/2,378,965.80 - Step 6: Final answer
x = 1,781,827.84
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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.