Finding the Fourth Proportional to 4,368,840.70, 6,553,261.05 and 3,906,946.30
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Solution
The fourth proportional to 4,368,840.70, 6,553,261.05 and 3,906,946.30 is: 5,860,419.45
Step by Step Solution
- Step 1: Write the proportion equation
4,368,840.70 : 6,553,261.05 = 3,906,946.30 : x - Step 2: Convert to fraction form
4,368,840.70/6,553,261.05 = 3,906,946.30/x - Step 3: Cross multiply
4,368,840.70x = 6,553,261.05 × 3,906,946.30 - Step 4: Simplify right side
4,368,840.70x = 25,603,239,012,231.61 - Step 5: Solve for x
x = 25,603,239,012,231.61/4,368,840.70 - Step 6: Final answer
x = 5,860,419.45
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Double scale
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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.