Finding the Fourth Proportional to 381,363.18, 528,692.33 and 361,140.72
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Solution
The fourth proportional to 381,363.18, 528,692.33 and 361,140.72 is: 500,657.48
Step by Step Solution
- Step 1: Write the proportion equation
381,363.18 : 528,692.33 = 361,140.72 : x - Step 2: Convert to fraction form
381,363.18/528,692.33 = 361,140.72/x - Step 3: Cross multiply
381,363.18x = 528,692.33 × 361,140.72 - Step 4: Simplify right side
381,363.18x = 190,932,326,908.97 - Step 5: Solve for x
x = 190,932,326,908.97/381,363.18 - Step 6: Final answer
x = 500,657.48
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.