Finding the Fourth Proportional to 2,868,270.20, 3,958,062.61 and 1,578,858.74
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Solution
The fourth proportional to 2,868,270.20, 3,958,062.61 and 1,578,858.74 is: 2,178,742.34
Step by Step Solution
- Step 1: Write the proportion equation
2,868,270.20 : 3,958,062.61 = 1,578,858.74 : x - Step 2: Convert to fraction form
2,868,270.20/3,958,062.61 = 1,578,858.74/x - Step 3: Cross multiply
2,868,270.20x = 3,958,062.61 × 1,578,858.74 - Step 4: Simplify right side
2,868,270.20x = 6,249,221,717,581.11 - Step 5: Solve for x
x = 6,249,221,717,581.11/2,868,270.20 - Step 6: Final answer
x = 2,178,742.34
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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.