Finding the Fourth Proportional to 415,697.94, 573,620.36 and 306,860.18
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Solution
The fourth proportional to 415,697.94, 573,620.36 and 306,860.18 is: 423,435.45
Step by Step Solution
- Step 1: Write the proportion equation
415,697.94 : 573,620.36 = 306,860.18 : x - Step 2: Convert to fraction form
415,697.94/573,620.36 = 306,860.18/x - Step 3: Cross multiply
415,697.94x = 573,620.36 × 306,860.18 - Step 4: Simplify right side
415,697.94x = 176,021,242,518.86 - Step 5: Solve for x
x = 176,021,242,518.86/415,697.94 - Step 6: Final answer
x = 423,435.45
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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.