Finding the Fourth Proportional to 1,049,911.68, 1,575,117.80 and 339,939.92
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Solution
The fourth proportional to 1,049,911.68, 1,575,117.80 and 339,939.92 is: 509,990.92
Step by Step Solution
- Step 1: Write the proportion equation
1,049,911.68 : 1,575,117.80 = 339,939.92 : x - Step 2: Convert to fraction form
1,049,911.68/1,575,117.80 = 339,939.92/x - Step 3: Cross multiply
1,049,911.68x = 1,575,117.80 × 339,939.92 - Step 4: Simplify right side
1,049,911.68x = 535,445,418,922.58 - Step 5: Solve for x
x = 535,445,418,922.58/1,049,911.68 - Step 6: Final answer
x = 509,990.92
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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.