Finding the Fourth Proportional to 678,288.96, 936,050.44 and 372,393.68
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Solution
The fourth proportional to 678,288.96, 936,050.44 and 372,393.68 is: 513,909.69
Step by Step Solution
- Step 1: Write the proportion equation
678,288.96 : 936,050.44 = 372,393.68 : x - Step 2: Convert to fraction form
678,288.96/936,050.44 = 372,393.68/x - Step 3: Cross multiply
678,288.96x = 936,050.44 × 372,393.68 - Step 4: Simplify right side
678,288.96x = 348,579,268,017.22 - Step 5: Solve for x
x = 348,579,268,017.22/678,288.96 - Step 6: Final answer
x = 513,909.69
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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.