Finding the Fourth Proportional to 391,033.84, 539,887.92 and 263,662.96
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Solution
The fourth proportional to 391,033.84, 539,887.92 and 263,662.96 is: 364,031.02
Step by Step Solution
- Step 1: Write the proportion equation
391,033.84 : 539,887.92 = 263,662.96 : x - Step 2: Convert to fraction form
391,033.84/539,887.92 = 263,662.96/x - Step 3: Cross multiply
391,033.84x = 539,887.92 × 263,662.96 - Step 4: Simplify right side
391,033.84x = 142,348,447,055.44 - Step 5: Solve for x
x = 142,348,447,055.44/391,033.84 - Step 6: Final answer
x = 364,031.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.