Finding the Fourth Proportional to 1,868,346.05, 2,578,508.04 and 1,143,672.66
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Solution
The fourth proportional to 1,868,346.05, 2,578,508.04 and 1,143,672.66 is: 1,578,384.88
Step by Step Solution
- Step 1: Write the proportion equation
1,868,346.05 : 2,578,508.04 = 1,143,672.66 : x - Step 2: Convert to fraction form
1,868,346.05/2,578,508.04 = 1,143,672.66/x - Step 3: Cross multiply
1,868,346.05x = 2,578,508.04 × 1,143,672.66 - Step 4: Simplify right side
1,868,346.05x = 2,948,969,148,938.19 - Step 5: Solve for x
x = 2,948,969,148,938.19/1,868,346.05 - Step 6: Final answer
x = 1,578,384.88
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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.