Finding the Fourth Proportional to 2,115,186.32, 2,918,991.08 and 1,148,315.88
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Solution
The fourth proportional to 2,115,186.32, 2,918,991.08 and 1,148,315.88 is: 1,584,694.35
Step by Step Solution
- Step 1: Write the proportion equation
2,115,186.32 : 2,918,991.08 = 1,148,315.88 : x - Step 2: Convert to fraction form
2,115,186.32/2,918,991.08 = 1,148,315.88/x - Step 3: Cross multiply
2,115,186.32x = 2,918,991.08 × 1,148,315.88 - Step 4: Simplify right side
2,115,186.32x = 3,351,923,810,742.35 - Step 5: Solve for x
x = 3,351,923,810,742.35/2,115,186.32 - Step 6: Final answer
x = 1,584,694.35
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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.