Finding the Fourth Proportional to 418,879.95, 578,051.69 and 227,894.19
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Solution
The fourth proportional to 418,879.95, 578,051.69 and 227,894.19 is: 314,492.55
Step by Step Solution
- Step 1: Write the proportion equation
418,879.95 : 578,051.69 = 227,894.19 : x - Step 2: Convert to fraction form
418,879.95/578,051.69 = 227,894.19/x - Step 3: Cross multiply
418,879.95x = 578,051.69 × 227,894.19 - Step 4: Simplify right side
418,879.95x = 131,734,621,670.68 - Step 5: Solve for x
x = 131,734,621,670.68/418,879.95 - Step 6: Final answer
x = 314,492.55
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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.