Finding the Fourth Proportional to 579,343.09, 869,254.70 and 312,790.31
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Solution
The fourth proportional to 579,343.09, 869,254.70 and 312,790.31 is: 469,315.08
Step by Step Solution
- Step 1: Write the proportion equation
579,343.09 : 869,254.70 = 312,790.31 : x - Step 2: Convert to fraction form
579,343.09/869,254.70 = 312,790.31/x - Step 3: Cross multiply
579,343.09x = 869,254.70 × 312,790.31 - Step 4: Simplify right side
579,343.09x = 271,894,447,691.14 - Step 5: Solve for x
x = 271,894,447,691.14/579,343.09 - Step 6: Final answer
x = 469,315.08
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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.