Finding the Fourth Proportional to 914,406.05, 1,261,900.67 and 521,931.08
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Solution
The fourth proportional to 914,406.05, 1,261,900.67 and 521,931.08 is: 720,276.48
Step by Step Solution
- Step 1: Write the proportion equation
914,406.05 : 1,261,900.67 = 521,931.08 : x - Step 2: Convert to fraction form
914,406.05/1,261,900.67 = 521,931.08/x - Step 3: Cross multiply
914,406.05x = 1,261,900.67 × 521,931.08 - Step 4: Simplify right side
914,406.05x = 658,625,170,626.67 - Step 5: Solve for x
x = 658,625,170,626.67/914,406.05 - Step 6: Final answer
x = 720,276.48
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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.