Finding the Fourth Proportional to 4,638,894.85, 6,401,890.43 and 2,897,595.19
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Solution
The fourth proportional to 4,638,894.85, 6,401,890.43 and 2,897,595.19 is: 3,998,815.99
Step by Step Solution
- Step 1: Write the proportion equation
4,638,894.85 : 6,401,890.43 = 2,897,595.19 : x - Step 2: Convert to fraction form
4,638,894.85/6,401,890.43 = 2,897,595.19/x - Step 3: Cross multiply
4,638,894.85x = 6,401,890.43 × 2,897,595.19 - Step 4: Simplify right side
4,638,894.85x = 18,550,086,916,875.03 - Step 5: Solve for x
x = 18,550,086,916,875.03/4,638,894.85 - Step 6: Final answer
x = 3,998,815.99
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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.