Finding the Fourth Proportional to 3,830,245.20, 5,285,695.34 and 2,087,876.42
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Solution
The fourth proportional to 3,830,245.20, 5,285,695.34 and 2,087,876.42 is: 2,881,246.00
Step by Step Solution
- Step 1: Write the proportion equation
3,830,245.20 : 5,285,695.34 = 2,087,876.42 : x - Step 2: Convert to fraction form
3,830,245.20/5,285,695.34 = 2,087,876.42/x - Step 3: Cross multiply
3,830,245.20x = 5,285,695.34 × 2,087,876.42 - Step 4: Simplify right side
3,830,245.20x = 11,035,878,663,689.88 - Step 5: Solve for x
x = 11,035,878,663,689.88/3,830,245.20 - Step 6: Final answer
x = 2,881,246.00
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1.5x scale
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.