Finding the Fourth Proportional to 1,788,768.09, 2,468,275.34 and 1,209,251.84
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Solution
The fourth proportional to 1,788,768.09, 2,468,275.34 and 1,209,251.84 is: 1,668,615.68
Step by Step Solution
- Step 1: Write the proportion equation
1,788,768.09 : 2,468,275.34 = 1,209,251.84 : x - Step 2: Convert to fraction form
1,788,768.09/2,468,275.34 = 1,209,251.84/x - Step 3: Cross multiply
1,788,768.09x = 2,468,275.34 × 1,209,251.84 - Step 4: Simplify right side
1,788,768.09x = 2,984,766,478,133.99 - Step 5: Solve for x
x = 2,984,766,478,133.99/1,788,768.09 - Step 6: Final answer
x = 1,668,615.68
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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.