Finding the Fourth Proportional to 812,720.16, 1,219,194.24 and 339,297.84
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Solution
The fourth proportional to 812,720.16, 1,219,194.24 and 339,297.84 is: 508,994.35
Step by Step Solution
- Step 1: Write the proportion equation
812,720.16 : 1,219,194.24 = 339,297.84 : x - Step 2: Convert to fraction form
812,720.16/1,219,194.24 = 339,297.84/x - Step 3: Cross multiply
812,720.16x = 1,219,194.24 × 339,297.84 - Step 4: Simplify right side
812,720.16x = 413,669,972,172.44 - Step 5: Solve for x
x = 413,669,972,172.44/812,720.16 - Step 6: Final answer
x = 508,994.35
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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.