Finding the Fourth Proportional to 686,178.84, 946,927.08 and 417,906.84
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Solution
The fourth proportional to 686,178.84, 946,927.08 and 417,906.84 is: 576,711.61
Step by Step Solution
- Step 1: Write the proportion equation
686,178.84 : 946,927.08 = 417,906.84 : x - Step 2: Convert to fraction form
686,178.84/946,927.08 = 417,906.84/x - Step 3: Cross multiply
686,178.84x = 946,927.08 × 417,906.84 - Step 4: Simplify right side
686,178.84x = 395,727,303,713.23 - Step 5: Solve for x
x = 395,727,303,713.23/686,178.84 - Step 6: Final answer
x = 576,711.61
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1.5x scale
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.