Finding the Fourth Proportional to 809,796.84, 1,117,585.74 and 465,744.16
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Solution
The fourth proportional to 809,796.84, 1,117,585.74 and 465,744.16 is: 642,764.96
Step by Step Solution
- Step 1: Write the proportion equation
809,796.84 : 1,117,585.74 = 465,744.16 : x - Step 2: Convert to fraction form
809,796.84/1,117,585.74 = 465,744.16/x - Step 3: Cross multiply
809,796.84x = 1,117,585.74 × 465,744.16 - Step 4: Simplify right side
809,796.84x = 520,509,031,704.28 - Step 5: Solve for x
x = 520,509,031,704.28/809,796.84 - Step 6: Final answer
x = 642,764.96
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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.