Finding the Fourth Proportional to 2,668,965.21, 3,683,173.68 and 1,445,280.39
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Solution
The fourth proportional to 2,668,965.21, 3,683,173.68 and 1,445,280.39 is: 1,994,487.85
Step by Step Solution
- Step 1: Write the proportion equation
2,668,965.21 : 3,683,173.68 = 1,445,280.39 : x - Step 2: Convert to fraction form
2,668,965.21/3,683,173.68 = 1,445,280.39/x - Step 3: Cross multiply
2,668,965.21x = 3,683,173.68 × 1,445,280.39 - Step 4: Simplify right side
2,668,965.21x = 5,323,218,692,668.14 - Step 5: Solve for x
x = 5,323,218,692,668.14/2,668,965.21 - Step 6: Final answer
x = 1,994,487.85
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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.