Finding the Fourth Proportional to 505,713.62, 697,885.27 and 276,274.74
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Solution
The fourth proportional to 505,713.62, 697,885.27 and 276,274.74 is: 381,259.40
Step by Step Solution
- Step 1: Write the proportion equation
505,713.62 : 697,885.27 = 276,274.74 : x - Step 2: Convert to fraction form
505,713.62/697,885.27 = 276,274.74/x - Step 3: Cross multiply
505,713.62x = 697,885.27 × 276,274.74 - Step 4: Simplify right side
505,713.62x = 192,808,071,519.08 - Step 5: Solve for x
x = 192,808,071,519.08/505,713.62 - Step 6: Final answer
x = 381,259.40
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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.