Finding the Fourth Proportional to 2,129,485.90, 2,938,732.10 and 1,162,618.66
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Solution
The fourth proportional to 2,129,485.90, 2,938,732.10 and 1,162,618.66 is: 1,604,436.44
Step by Step Solution
- Step 1: Write the proportion equation
2,129,485.90 : 2,938,732.10 = 1,162,618.66 : x - Step 2: Convert to fraction form
2,129,485.90/2,938,732.10 = 1,162,618.66/x - Step 3: Cross multiply
2,129,485.90x = 2,938,732.10 × 1,162,618.66 - Step 4: Simplify right side
2,129,485.90x = 3,416,624,776,200.99 - Step 5: Solve for x
x = 3,416,624,776,200.99/2,129,485.90 - Step 6: Final answer
x = 1,604,436.44
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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.