Finding the Fourth Proportional to 420,506.07, 580,244.11 and 236,721.42
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Solution
The fourth proportional to 420,506.07, 580,244.11 and 236,721.42 is: 326,645.01
Step by Step Solution
- Step 1: Write the proportion equation
420,506.07 : 580,244.11 = 236,721.42 : x - Step 2: Convert to fraction form
420,506.07/580,244.11 = 236,721.42/x - Step 3: Cross multiply
420,506.07x = 580,244.11 × 236,721.42 - Step 4: Simplify right side
420,506.07x = 137,356,209,074.03 - Step 5: Solve for x
x = 137,356,209,074.03/420,506.07 - Step 6: Final answer
x = 326,645.01
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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.