Finding the Fourth Proportional to 1,553,182.68, 2,143,371.63 and 855,450.09
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Solution
The fourth proportional to 1,553,182.68, 2,143,371.63 and 855,450.09 is: 1,180,509.85
Step by Step Solution
- Step 1: Write the proportion equation
1,553,182.68 : 2,143,371.63 = 855,450.09 : x - Step 2: Convert to fraction form
1,553,182.68/2,143,371.63 = 855,450.09/x - Step 3: Cross multiply
1,553,182.68x = 2,143,371.63 × 855,450.09 - Step 4: Simplify right side
1,553,182.68x = 1,833,547,453,786.95 - Step 5: Solve for x
x = 1,833,547,453,786.95/1,553,182.68 - Step 6: Final answer
x = 1,180,509.85
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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.