Finding the Fourth Proportional to 545,199.68, 817,966.85 and 279,146.99
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Solution
The fourth proportional to 545,199.68, 817,966.85 and 279,146.99 is: 418,806.15
Step by Step Solution
- Step 1: Write the proportion equation
545,199.68 : 817,966.85 = 279,146.99 : x - Step 2: Convert to fraction form
545,199.68/817,966.85 = 279,146.99/x - Step 3: Cross multiply
545,199.68x = 817,966.85 × 279,146.99 - Step 4: Simplify right side
545,199.68x = 228,332,978,611.71 - Step 5: Solve for x
x = 228,332,978,611.71/545,199.68 - Step 6: Final answer
x = 418,806.15
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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.