Finding the Fourth Proportional to 403,774.20, 605,005.20 and 347,349.60
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Solution
The fourth proportional to 403,774.20, 605,005.20 and 347,349.60 is: 520,459.99
Step by Step Solution
- Step 1: Write the proportion equation
403,774.20 : 605,005.20 = 347,349.60 : x - Step 2: Convert to fraction form
403,774.20/605,005.20 = 347,349.60/x - Step 3: Cross multiply
403,774.20x = 605,005.20 × 347,349.60 - Step 4: Simplify right side
403,774.20x = 210,148,314,217.92 - Step 5: Solve for x
x = 210,148,314,217.92/403,774.20 - Step 6: Final answer
x = 520,459.99
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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.