Finding the Fourth Proportional to 782,448.14, 1,079,718.92 and 476,490.62
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Solution
The fourth proportional to 782,448.14, 1,079,718.92 and 476,490.62 is: 657,520.81
Step by Step Solution
- Step 1: Write the proportion equation
782,448.14 : 1,079,718.92 = 476,490.62 : x - Step 2: Convert to fraction form
782,448.14/1,079,718.92 = 476,490.62/x - Step 3: Cross multiply
782,448.14x = 1,079,718.92 × 476,490.62 - Step 4: Simplify right side
782,448.14x = 514,475,937,616.53 - Step 5: Solve for x
x = 514,475,937,616.53/782,448.14 - Step 6: Final answer
x = 657,520.81
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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.