Finding the Fourth Proportional to 2,378,833.40, 3,282,706.60 and 1,291,083.09
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Solution
The fourth proportional to 2,378,833.40, 3,282,706.60 and 1,291,083.09 is: 1,781,649.35
Step by Step Solution
- Step 1: Write the proportion equation
2,378,833.40 : 3,282,706.60 = 1,291,083.09 : x - Step 2: Convert to fraction form
2,378,833.40/3,282,706.60 = 1,291,083.09/x - Step 3: Cross multiply
2,378,833.40x = 3,282,706.60 × 1,291,083.09 - Step 4: Simplify right side
2,378,833.40x = 4,238,246,980,691.39 - Step 5: Solve for x
x = 4,238,246,980,691.39/2,378,833.40 - Step 6: Final answer
x = 1,781,649.35
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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.