Finding the Fourth Proportional to 607,311.70, 910,967.55 and 489,213.70
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Solution
The fourth proportional to 607,311.70, 910,967.55 and 489,213.70 is: 733,820.55
Step by Step Solution
- Step 1: Write the proportion equation
607,311.70 : 910,967.55 = 489,213.70 : x - Step 2: Convert to fraction form
607,311.70/910,967.55 = 489,213.70/x - Step 3: Cross multiply
607,311.70x = 910,967.55 × 489,213.70 - Step 4: Simplify right side
607,311.70x = 445,657,805,715.44 - Step 5: Solve for x
x = 445,657,805,715.44/607,311.70 - Step 6: Final answer
x = 733,820.55
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Similar ratio
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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.