Finding the Fourth Proportional to 650,859.40, 977,163.90 and 415,246.60
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Solution
The fourth proportional to 650,859.40, 977,163.90 and 415,246.60 is: 623,428.02
Step by Step Solution
- Step 1: Write the proportion equation
650,859.40 : 977,163.90 = 415,246.60 : x - Step 2: Convert to fraction form
650,859.40/977,163.90 = 415,246.60/x - Step 3: Cross multiply
650,859.40x = 977,163.90 × 415,246.60 - Step 4: Simplify right side
650,859.40x = 405,763,987,117.74 - Step 5: Solve for x
x = 405,763,987,117.74/650,859.40 - Step 6: Final answer
x = 623,428.02
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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.