Finding the Fourth Proportional to 620,502.84, 856,373.10 and 378,733.68
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Solution
The fourth proportional to 620,502.84, 856,373.10 and 378,733.68 is: 522,700.81
Step by Step Solution
- Step 1: Write the proportion equation
620,502.84 : 856,373.10 = 378,733.68 : x - Step 2: Convert to fraction form
620,502.84/856,373.10 = 378,733.68/x - Step 3: Cross multiply
620,502.84x = 856,373.10 × 378,733.68 - Step 4: Simplify right side
620,502.84x = 324,337,335,616.01 - Step 5: Solve for x
x = 324,337,335,616.01/620,502.84 - Step 6: Final answer
x = 522,700.81
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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.