Finding the Fourth Proportional to 1,555,930.40, 2,335,645.20 and 1,202,511.20
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Solution
The fourth proportional to 1,555,930.40, 2,335,645.20 and 1,202,511.20 is: 1,805,118.99
Step by Step Solution
- Step 1: Write the proportion equation
1,555,930.40 : 2,335,645.20 = 1,202,511.20 : x - Step 2: Convert to fraction form
1,555,930.40/2,335,645.20 = 1,202,511.20/x - Step 3: Cross multiply
1,555,930.40x = 2,335,645.20 × 1,202,511.20 - Step 4: Simplify right side
1,555,930.40x = 2,808,639,512,226.24 - Step 5: Solve for x
x = 2,808,639,512,226.24/1,555,930.40 - Step 6: Final answer
x = 1,805,118.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.