Finding the Fourth Proportional to 679,740.08, 937,807.68 and 421,524.20
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Solution
The fourth proportional to 679,740.08, 937,807.68 and 421,524.20 is: 581,558.52
Step by Step Solution
- Step 1: Write the proportion equation
679,740.08 : 937,807.68 = 421,524.20 : x - Step 2: Convert to fraction form
679,740.08/937,807.68 = 421,524.20/x - Step 3: Cross multiply
679,740.08x = 937,807.68 × 421,524.20 - Step 4: Simplify right side
679,740.08x = 395,308,632,065.86 - Step 5: Solve for x
x = 395,308,632,065.86/679,740.08 - Step 6: Final answer
x = 581,558.52
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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.