Finding the Fourth Proportional to 809,134.42, 1,116,375.32 and 486,683.14
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Solution
The fourth proportional to 809,134.42, 1,116,375.32 and 486,683.14 is: 671,484.28
Step by Step Solution
- Step 1: Write the proportion equation
809,134.42 : 1,116,375.32 = 486,683.14 : x - Step 2: Convert to fraction form
809,134.42/1,116,375.32 = 486,683.14/x - Step 3: Cross multiply
809,134.42x = 1,116,375.32 × 486,683.14 - Step 4: Simplify right side
809,134.42x = 543,321,046,156.11 - Step 5: Solve for x
x = 543,321,046,156.11/809,134.42 - Step 6: Final answer
x = 671,484.28
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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.