Finding the Fourth Proportional to 615,101.70, 921,874.95 and 548,228.10
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Solution
The fourth proportional to 615,101.70, 921,874.95 and 548,228.10 is: 821,649.09
Step by Step Solution
- Step 1: Write the proportion equation
615,101.70 : 921,874.95 = 548,228.10 : x - Step 2: Convert to fraction form
615,101.70/921,874.95 = 548,228.10/x - Step 3: Cross multiply
615,101.70x = 921,874.95 × 548,228.10 - Step 4: Simplify right side
615,101.70x = 505,397,752,276.10 - Step 5: Solve for x
x = 505,397,752,276.10/615,101.70 - Step 6: Final answer
x = 821,649.09
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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.