Finding the Fourth Proportional to 2,132,874.32, 2,943,401.60 and 1,273,509.68
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Solution
The fourth proportional to 2,132,874.32, 2,943,401.60 and 1,273,509.68 is: 1,757,464.28
Step by Step Solution
- Step 1: Write the proportion equation
2,132,874.32 : 2,943,401.60 = 1,273,509.68 : x - Step 2: Convert to fraction form
2,132,874.32/2,943,401.60 = 1,273,509.68/x - Step 3: Cross multiply
2,132,874.32x = 2,943,401.60 × 1,273,509.68 - Step 4: Simplify right side
2,132,874.32x = 3,748,450,429,727.49 - Step 5: Solve for x
x = 3,748,450,429,727.49/2,132,874.32 - Step 6: Final answer
x = 1,757,464.28
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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.