Finding the Fourth Proportional to 836,122.15, 1,253,994.09 and 386,598.07
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Solution
The fourth proportional to 836,122.15, 1,253,994.09 and 386,598.07 is: 579,809.65
Step by Step Solution
- Step 1: Write the proportion equation
836,122.15 : 1,253,994.09 = 386,598.07 : x - Step 2: Convert to fraction form
836,122.15/1,253,994.09 = 386,598.07/x - Step 3: Cross multiply
836,122.15x = 1,253,994.09 × 386,598.07 - Step 4: Simplify right side
836,122.15x = 484,791,694,985.41 - Step 5: Solve for x
x = 484,791,694,985.41/836,122.15 - Step 6: Final answer
x = 579,809.65
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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.