Finding the Fourth Proportional to 2,891,948.78, 3,988,562.28 and 2,542,341.67
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Solution
The fourth proportional to 2,891,948.78, 3,988,562.28 and 2,542,341.67 is: 3,506,385.79
Step by Step Solution
- Step 1: Write the proportion equation
2,891,948.78 : 3,988,562.28 = 2,542,341.67 : x - Step 2: Convert to fraction form
2,891,948.78/3,988,562.28 = 2,542,341.67/x - Step 3: Cross multiply
2,891,948.78x = 3,988,562.28 × 2,542,341.67 - Step 4: Simplify right side
2,891,948.78x = 10,140,288,083,286.13 - Step 5: Solve for x
x = 10,140,288,083,286.13/2,891,948.78 - Step 6: Final answer
x = 3,506,385.79
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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.