Finding the Fourth Proportional to 709,865.68, 979,607.64 and 387,586.12
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Solution
The fourth proportional to 709,865.68, 979,607.64 and 387,586.12 is: 534,865.02
Step by Step Solution
- Step 1: Write the proportion equation
709,865.68 : 979,607.64 = 387,586.12 : x - Step 2: Convert to fraction form
709,865.68/979,607.64 = 387,586.12/x - Step 3: Cross multiply
709,865.68x = 979,607.64 × 387,586.12 - Step 4: Simplify right side
709,865.68x = 379,682,324,309.96 - Step 5: Solve for x
x = 379,682,324,309.96/709,865.68 - Step 6: Final answer
x = 534,865.02
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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.