Finding the Fourth Proportional to 547,924.14, 756,138.12 and 306,210.75
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Solution
The fourth proportional to 547,924.14, 756,138.12 and 306,210.75 is: 422,572.40
Step by Step Solution
- Step 1: Write the proportion equation
547,924.14 : 756,138.12 = 306,210.75 : x - Step 2: Convert to fraction form
547,924.14/756,138.12 = 306,210.75/x - Step 3: Cross multiply
547,924.14x = 756,138.12 × 306,210.75 - Step 4: Simplify right side
547,924.14x = 231,537,620,828.79 - Step 5: Solve for x
x = 231,537,620,828.79/547,924.14 - Step 6: Final answer
x = 422,572.40
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1.5x scale
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.