Finding the Fourth Proportional to 680,602.40, 939,235.20 and 374,709.68
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Solution
The fourth proportional to 680,602.40, 939,235.20 and 374,709.68 is: 517,101.50
Step by Step Solution
- Step 1: Write the proportion equation
680,602.40 : 939,235.20 = 374,709.68 : x - Step 2: Convert to fraction form
680,602.40/939,235.20 = 374,709.68/x - Step 3: Cross multiply
680,602.40x = 939,235.20 × 374,709.68 - Step 4: Simplify right side
680,602.40x = 351,940,521,236.74 - Step 5: Solve for x
x = 351,940,521,236.74/680,602.40 - Step 6: Final answer
x = 517,101.50
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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.