Finding the Fourth Proportional to 2,515,444.79, 3,471,138.70 and 1,427,738.51
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Solution
The fourth proportional to 2,515,444.79, 3,471,138.70 and 1,427,738.51 is: 1,970,179.76
Step by Step Solution
- Step 1: Write the proportion equation
2,515,444.79 : 3,471,138.70 = 1,427,738.51 : x - Step 2: Convert to fraction form
2,515,444.79/3,471,138.70 = 1,427,738.51/x - Step 3: Cross multiply
2,515,444.79x = 3,471,138.70 × 1,427,738.51 - Step 4: Simplify right side
2,515,444.79x = 4,955,878,400,649.84 - Step 5: Solve for x
x = 4,955,878,400,649.84/2,515,444.79 - Step 6: Final answer
x = 1,970,179.76
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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.