Finding the Fourth Proportional to 547,854.49, 756,024.68 and 306,139.05
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Solution
The fourth proportional to 547,854.49, 756,024.68 and 306,139.05 is: 422,463.77
Step by Step Solution
- Step 1: Write the proportion equation
547,854.49 : 756,024.68 = 306,139.05 : x - Step 2: Convert to fraction form
547,854.49/756,024.68 = 306,139.05/x - Step 3: Cross multiply
547,854.49x = 756,024.68 × 306,139.05 - Step 4: Simplify right side
547,854.49x = 231,448,673,519.98 - Step 5: Solve for x
x = 231,448,673,519.98/547,854.49 - Step 6: Final answer
x = 422,463.77
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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.