Finding the Fourth Proportional to 2,810,768.79, 3,878,862.24 and 1,521,609.18
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Solution
The fourth proportional to 2,810,768.79, 3,878,862.24 and 1,521,609.18 is: 2,099,821.38
Step by Step Solution
- Step 1: Write the proportion equation
2,810,768.79 : 3,878,862.24 = 1,521,609.18 : x - Step 2: Convert to fraction form
2,810,768.79/3,878,862.24 = 1,521,609.18/x - Step 3: Cross multiply
2,810,768.79x = 3,878,862.24 × 1,521,609.18 - Step 4: Simplify right side
2,810,768.79x = 5,902,112,392,339.36 - Step 5: Solve for x
x = 5,902,112,392,339.36/2,810,768.79 - Step 6: Final answer
x = 2,099,821.38
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1.5x scale
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.