Finding the Fourth Proportional to 452,687.78, 679,350.76 and 212,812.63
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Solution
The fourth proportional to 452,687.78, 679,350.76 and 212,812.63 is: 319,368.95
Step by Step Solution
- Step 1: Write the proportion equation
452,687.78 : 679,350.76 = 212,812.63 : x - Step 2: Convert to fraction form
452,687.78/679,350.76 = 212,812.63/x - Step 3: Cross multiply
452,687.78x = 679,350.76 × 212,812.63 - Step 4: Simplify right side
452,687.78x = 144,574,419,697.69 - Step 5: Solve for x
x = 144,574,419,697.69/452,687.78 - Step 6: Final answer
x = 319,368.95
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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.