Finding the Fourth Proportional to 415,415.30, 623,122.95 and 415,415.30
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Solution
The fourth proportional to 415,415.30, 623,122.95 and 415,415.30 is: 623,122.95
Step by Step Solution
- Step 1: Write the proportion equation
415,415.30 : 623,122.95 = 415,415.30 : x - Step 2: Convert to fraction form
415,415.30/623,122.95 = 415,415.30/x - Step 3: Cross multiply
415,415.30x = 623,122.95 × 415,415.30 - Step 4: Simplify right side
415,415.30x = 258,854,807,211.14 - Step 5: Solve for x
x = 258,854,807,211.14/415,415.30 - Step 6: Final answer
x = 623,122.95
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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.