Finding the Fourth Proportional to 547,703.90, 821,431.65 and 247,986.62
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Solution
The fourth proportional to 547,703.90, 821,431.65 and 247,986.62 is: 371,923.70
Step by Step Solution
- Step 1: Write the proportion equation
547,703.90 : 821,431.65 = 247,986.62 : x - Step 2: Convert to fraction form
547,703.90/821,431.65 = 247,986.62/x - Step 3: Cross multiply
547,703.90x = 821,431.65 × 247,986.62 - Step 4: Simplify right side
547,703.90x = 203,704,058,444.52 - Step 5: Solve for x
x = 203,704,058,444.52/547,703.90 - Step 6: Final answer
x = 371,923.70
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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.