Finding the Fourth Proportional to 1,549,455.76, 2,138,240.86 and 851,752.81
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Solution
The fourth proportional to 1,549,455.76, 2,138,240.86 and 851,752.81 is: 1,175,414.43
Step by Step Solution
- Step 1: Write the proportion equation
1,549,455.76 : 2,138,240.86 = 851,752.81 : x - Step 2: Convert to fraction form
1,549,455.76/2,138,240.86 = 851,752.81/x - Step 3: Cross multiply
1,549,455.76x = 2,138,240.86 × 851,752.81 - Step 4: Simplify right side
1,549,455.76x = 1,821,252,660,961.82 - Step 5: Solve for x
x = 1,821,252,660,961.82/1,549,455.76 - Step 6: Final answer
x = 1,175,414.43
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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.