Finding the Fourth Proportional to 1,423,609.91, 1,964,581.49 and 779,030.18
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Solution
The fourth proportional to 1,423,609.91, 1,964,581.49 and 779,030.18 is: 1,075,061.54
Step by Step Solution
- Step 1: Write the proportion equation
1,423,609.91 : 1,964,581.49 = 779,030.18 : x - Step 2: Convert to fraction form
1,423,609.91/1,964,581.49 = 779,030.18/x - Step 3: Cross multiply
1,423,609.91x = 1,964,581.49 × 779,030.18 - Step 4: Simplify right side
1,423,609.91x = 1,530,468,267,884.22 - Step 5: Solve for x
x = 1,530,468,267,884.22/1,423,609.91 - Step 6: Final answer
x = 1,075,061.54
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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.