Finding the Fourth Proportional to 851,632.18, 1,276,933.74 and 339,376.12
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Solution
The fourth proportional to 851,632.18, 1,276,933.74 and 339,376.12 is: 508,859.14
Step by Step Solution
- Step 1: Write the proportion equation
851,632.18 : 1,276,933.74 = 339,376.12 : x - Step 2: Convert to fraction form
851,632.18/1,276,933.74 = 339,376.12/x - Step 3: Cross multiply
851,632.18x = 1,276,933.74 × 339,376.12 - Step 4: Simplify right side
851,632.18x = 433,360,818,501.80 - Step 5: Solve for x
x = 433,360,818,501.80/851,632.18 - Step 6: Final answer
x = 508,859.14
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.