Finding the Fourth Proportional to 676,853.21, 1,014,596.55 and 424,311.08
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Solution
The fourth proportional to 676,853.21, 1,014,596.55 and 424,311.08 is: 636,038.28
Step by Step Solution
- Step 1: Write the proportion equation
676,853.21 : 1,014,596.55 = 424,311.08 : x - Step 2: Convert to fraction form
676,853.21/1,014,596.55 = 424,311.08/x - Step 3: Cross multiply
676,853.21x = 1,014,596.55 × 424,311.08 - Step 4: Simplify right side
676,853.21x = 430,504,552,821.79 - Step 5: Solve for x
x = 430,504,552,821.79/676,853.21 - Step 6: Final answer
x = 636,038.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.