Finding the Fourth Proportional to 615,118.20, 922,988.49 and 415,018.05
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Solution
The fourth proportional to 615,118.20, 922,988.49 and 415,018.05 is: 622,737.03
Step by Step Solution
- Step 1: Write the proportion equation
615,118.20 : 922,988.49 = 415,018.05 : x - Step 2: Convert to fraction form
615,118.20/922,988.49 = 415,018.05/x - Step 3: Cross multiply
615,118.20x = 922,988.49 × 415,018.05 - Step 4: Simplify right side
615,118.20x = 383,056,883,292.25 - Step 5: Solve for x
x = 383,056,883,292.25/615,118.20 - Step 6: Final answer
x = 622,737.03
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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.