Finding the Fourth Proportional to 1,461,121.20, 2,190,126.60 and 562,215.60
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Solution
The fourth proportional to 1,461,121.20, 2,190,126.60 and 562,215.60 is: 842,724.98
Step by Step Solution
- Step 1: Write the proportion equation
1,461,121.20 : 2,190,126.60 = 562,215.60 : x - Step 2: Convert to fraction form
1,461,121.20/2,190,126.60 = 562,215.60/x - Step 3: Cross multiply
1,461,121.20x = 2,190,126.60 × 562,215.60 - Step 4: Simplify right side
1,461,121.20x = 1,231,323,340,494.96 - Step 5: Solve for x
x = 1,231,323,340,494.96/1,461,121.20 - Step 6: Final answer
x = 842,724.98
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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.