Finding the Fourth Proportional to 1,420,838.34, 1,960,755.84 and 808,959.48
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Solution
The fourth proportional to 1,420,838.34, 1,960,755.84 and 808,959.48 is: 1,116,363.47
Step by Step Solution
- Step 1: Write the proportion equation
1,420,838.34 : 1,960,755.84 = 808,959.48 : x - Step 2: Convert to fraction form
1,420,838.34/1,960,755.84 = 808,959.48/x - Step 3: Cross multiply
1,420,838.34x = 1,960,755.84 × 808,959.48 - Step 4: Simplify right side
1,420,838.34x = 1,586,172,024,733.36 - Step 5: Solve for x
x = 1,586,172,024,733.36/1,420,838.34 - Step 6: Final answer
x = 1,116,363.47
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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.