Finding the Fourth Proportional to 543,219.44, 749,680.58 and 313,854.17
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Solution
The fourth proportional to 543,219.44, 749,680.58 and 313,854.17 is: 433,140.57
Step by Step Solution
- Step 1: Write the proportion equation
543,219.44 : 749,680.58 = 313,854.17 : x - Step 2: Convert to fraction form
543,219.44/749,680.58 = 313,854.17/x - Step 3: Cross multiply
543,219.44x = 749,680.58 × 313,854.17 - Step 4: Simplify right side
543,219.44x = 235,290,373,237.25 - Step 5: Solve for x
x = 235,290,373,237.25/543,219.44 - Step 6: Final answer
x = 433,140.57
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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.