Finding the Fourth Proportional to 819,513.64, 1,128,355.29 and 696,764.62
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Solution
The fourth proportional to 819,513.64, 1,128,355.29 and 696,764.62 is: 959,347.11
Step by Step Solution
- Step 1: Write the proportion equation
819,513.64 : 1,128,355.29 = 696,764.62 : x - Step 2: Convert to fraction form
819,513.64/1,128,355.29 = 696,764.62/x - Step 3: Cross multiply
819,513.64x = 1,128,355.29 × 696,764.62 - Step 4: Simplify right side
819,513.64x = 786,198,044,861.84 - Step 5: Solve for x
x = 786,198,044,861.84/819,513.64 - Step 6: Final answer
x = 959,347.11
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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.