Finding the Fourth Proportional to 1,286,444.22, 1,929,758.97 and 339,802.62
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Solution
The fourth proportional to 1,286,444.22, 1,929,758.97 and 339,802.62 is: 509,728.40
Step by Step Solution
- Step 1: Write the proportion equation
1,286,444.22 : 1,929,758.97 = 339,802.62 : x - Step 2: Convert to fraction form
1,286,444.22/1,929,758.97 = 339,802.62/x - Step 3: Cross multiply
1,286,444.22x = 1,929,758.97 × 339,802.62 - Step 4: Simplify right side
1,286,444.22x = 655,737,153,974.50 - Step 5: Solve for x
x = 655,737,153,974.50/1,286,444.22 - Step 6: Final answer
x = 509,728.40
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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.