Finding the Fourth Proportional to 2,116,548.12, 2,920,890.74 and 1,149,733.74
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Solution
The fourth proportional to 2,116,548.12, 2,920,890.74 and 1,149,733.74 is: 1,586,662.08
Step by Step Solution
- Step 1: Write the proportion equation
2,116,548.12 : 2,920,890.74 = 1,149,733.74 : x - Step 2: Convert to fraction form
2,116,548.12/2,920,890.74 = 1,149,733.74/x - Step 3: Cross multiply
2,116,548.12x = 2,920,890.74 × 1,149,733.74 - Step 4: Simplify right side
2,116,548.12x = 3,358,246,637,505.90 - Step 5: Solve for x
x = 3,358,246,637,505.90/2,116,548.12 - Step 6: Final answer
x = 1,586,662.08
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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.