Finding the Fourth Proportional to 543,220.44, 749,681.96 and 313,855.17
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Solution
The fourth proportional to 543,220.44, 749,681.96 and 313,855.17 is: 433,141.95
Step by Step Solution
- Step 1: Write the proportion equation
543,220.44 : 749,681.96 = 313,855.17 : x - Step 2: Convert to fraction form
543,220.44/749,681.96 = 313,855.17/x - Step 3: Cross multiply
543,220.44x = 749,681.96 × 313,855.17 - Step 4: Simplify right side
543,220.44x = 235,291,559,001.73 - Step 5: Solve for x
x = 235,291,559,001.73/543,220.44 - Step 6: Final answer
x = 433,141.95
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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.