Finding the Fourth Proportional to 664,968.97, 917,679.81 and 393,269.76
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Solution
The fourth proportional to 664,968.97, 917,679.81 and 393,269.76 is: 542,725.65
Step by Step Solution
- Step 1: Write the proportion equation
664,968.97 : 917,679.81 = 393,269.76 : x - Step 2: Convert to fraction form
664,968.97/917,679.81 = 393,269.76/x - Step 3: Cross multiply
664,968.97x = 917,679.81 × 393,269.76 - Step 4: Simplify right side
664,968.97x = 360,895,718,635.55 - Step 5: Solve for x
x = 360,895,718,635.55/664,968.97 - Step 6: Final answer
x = 542,725.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.