Finding the Fourth Proportional to 782,293.81, 1,173,429.08 and 213,673.96
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Solution
The fourth proportional to 782,293.81, 1,173,429.08 and 213,673.96 is: 320,507.76
Step by Step Solution
- Step 1: Write the proportion equation
782,293.81 : 1,173,429.08 = 213,673.96 : x - Step 2: Convert to fraction form
782,293.81/1,173,429.08 = 213,673.96/x - Step 3: Cross multiply
782,293.81x = 1,173,429.08 × 213,673.96 - Step 4: Simplify right side
782,293.81x = 250,731,232,435.61 - Step 5: Solve for x
x = 250,731,232,435.61/782,293.81 - Step 6: Final answer
x = 320,507.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.