Finding the Fourth Proportional to 678,298.94, 936,064.26 and 372,403.70
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Solution
The fourth proportional to 678,298.94, 936,064.26 and 372,403.70 is: 513,923.54
Step by Step Solution
- Step 1: Write the proportion equation
678,298.94 : 936,064.26 = 372,403.70 : x - Step 2: Convert to fraction form
678,298.94/936,064.26 = 372,403.70/x - Step 3: Cross multiply
678,298.94x = 936,064.26 × 372,403.70 - Step 4: Simplify right side
678,298.94x = 348,593,793,861.76 - Step 5: Solve for x
x = 348,593,793,861.76/678,298.94 - Step 6: Final answer
x = 513,923.54
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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.