Finding the Fourth Proportional to 809,743.68, 1,117,482.21 and 465,691.32
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Solution
The fourth proportional to 809,743.68, 1,117,482.21 and 465,691.32 is: 642,674.69
Step by Step Solution
- Step 1: Write the proportion equation
809,743.68 : 1,117,482.21 = 465,691.32 : x - Step 2: Convert to fraction form
809,743.68/1,117,482.21 = 465,691.32/x - Step 3: Cross multiply
809,743.68x = 1,117,482.21 × 465,691.32 - Step 4: Simplify right side
809,743.68x = 520,401,765,451.42 - Step 5: Solve for x
x = 520,401,765,451.42/809,743.68 - Step 6: Final answer
x = 642,674.69
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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.