Finding the Fourth Proportional to 2,238,637.74, 3,089,330.55 and 1,271,821.11
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Solution
The fourth proportional to 2,238,637.74, 3,089,330.55 and 1,271,821.11 is: 1,755,119.08
Step by Step Solution
- Step 1: Write the proportion equation
2,238,637.74 : 3,089,330.55 = 1,271,821.11 : x - Step 2: Convert to fraction form
2,238,637.74/3,089,330.55 = 1,271,821.11/x - Step 3: Cross multiply
2,238,637.74x = 3,089,330.55 × 1,271,821.11 - Step 4: Simplify right side
2,238,637.74x = 3,929,075,809,257.91 - Step 5: Solve for x
x = 3,929,075,809,257.91/2,238,637.74 - Step 6: Final answer
x = 1,755,119.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.