Finding the Fourth Proportional to 1,292,060.10, 1,938,267.45 and 438,902.75
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Solution
The fourth proportional to 1,292,060.10, 1,938,267.45 and 438,902.75 is: 658,414.34
Step by Step Solution
- Step 1: Write the proportion equation
1,292,060.10 : 1,938,267.45 = 438,902.75 : x - Step 2: Convert to fraction form
1,292,060.10/1,938,267.45 = 438,902.75/x - Step 3: Cross multiply
1,292,060.10x = 1,938,267.45 × 438,902.75 - Step 4: Simplify right side
1,292,060.10x = 850,710,904,349.15 - Step 5: Solve for x
x = 850,710,904,349.15/1,292,060.10 - Step 6: Final answer
x = 658,414.34
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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.