Finding the Fourth Proportional to 811,446.85, 1,119,699.08 and 467,394.68
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Solution
The fourth proportional to 811,446.85, 1,119,699.08 and 467,394.68 is: 644,948.45
Step by Step Solution
- Step 1: Write the proportion equation
811,446.85 : 1,119,699.08 = 467,394.68 : x - Step 2: Convert to fraction form
811,446.85/1,119,699.08 = 467,394.68/x - Step 3: Cross multiply
811,446.85x = 1,119,699.08 × 467,394.68 - Step 4: Simplify right side
811,446.85x = 523,341,391,562.13 - Step 5: Solve for x
x = 523,341,391,562.13/811,446.85 - Step 6: Final answer
x = 644,948.45
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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.