Finding the Fourth Proportional to 809,990.96, 1,117,848.66 and 465,932.12
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Solution
The fourth proportional to 809,990.96, 1,117,848.66 and 465,932.12 is: 643,021.49
Step by Step Solution
- Step 1: Write the proportion equation
809,990.96 : 1,117,848.66 = 465,932.12 : x - Step 2: Convert to fraction form
809,990.96/1,117,848.66 = 465,932.12/x - Step 3: Cross multiply
809,990.96x = 1,117,848.66 × 465,932.12 - Step 4: Simplify right side
809,990.96x = 520,841,595,992.96 - Step 5: Solve for x
x = 520,841,595,992.96/809,990.96 - Step 6: Final answer
x = 643,021.49
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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.