Finding the Fourth Proportional to 420,616.62, 580,484.07 and 239,336.19
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Solution
The fourth proportional to 420,616.62, 580,484.07 and 239,336.19 is: 330,302.80
Step by Step Solution
- Step 1: Write the proportion equation
420,616.62 : 580,484.07 = 239,336.19 : x - Step 2: Convert to fraction form
420,616.62/580,484.07 = 239,336.19/x - Step 3: Cross multiply
420,616.62x = 580,484.07 × 239,336.19 - Step 4: Simplify right side
420,616.62x = 138,930,845,669.49 - Step 5: Solve for x
x = 138,930,845,669.49/420,616.62 - Step 6: Final answer
x = 330,302.80
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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.