Finding the Fourth Proportional to 1,292,064.45, 1,938,273.99 and 438,907.05
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Solution
The fourth proportional to 1,292,064.45, 1,938,273.99 and 438,907.05 is: 658,420.81
Step by Step Solution
- Step 1: Write the proportion equation
1,292,064.45 : 1,938,273.99 = 438,907.05 : x - Step 2: Convert to fraction form
1,292,064.45/1,938,273.99 = 438,907.05/x - Step 3: Cross multiply
1,292,064.45x = 1,938,273.99 × 438,907.05 - Step 4: Simplify right side
1,292,064.45x = 850,722,119,042.63 - Step 5: Solve for x
x = 850,722,119,042.63/1,292,064.45 - Step 6: Final answer
x = 658,420.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.