Finding the Fourth Proportional to 2,753,693.64, 4,128,265.98 and 1,215,593.82
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Solution
The fourth proportional to 2,753,693.64, 4,128,265.98 and 1,215,593.82 is: 1,822,386.68
Step by Step Solution
- Step 1: Write the proportion equation
2,753,693.64 : 4,128,265.98 = 1,215,593.82 : x - Step 2: Convert to fraction form
2,753,693.64/4,128,265.98 = 1,215,593.82/x - Step 3: Cross multiply
2,753,693.64x = 4,128,265.98 × 1,215,593.82 - Step 4: Simplify right side
2,753,693.64x = 5,018,294,612,604.24 - Step 5: Solve for x
x = 5,018,294,612,604.24/2,753,693.64 - Step 6: Final answer
x = 1,822,386.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.