Finding the Fourth Proportional to 391,184.99, 539,305.22 and 334,433.96
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Solution
The fourth proportional to 391,184.99, 539,305.22 and 334,433.96 is: 461,065.70
Step by Step Solution
- Step 1: Write the proportion equation
391,184.99 : 539,305.22 = 334,433.96 : x - Step 2: Convert to fraction form
391,184.99/539,305.22 = 334,433.96/x - Step 3: Cross multiply
391,184.99x = 539,305.22 × 334,433.96 - Step 4: Simplify right side
391,184.99x = 180,361,980,373.27 - Step 5: Solve for x
x = 180,361,980,373.27/391,184.99 - Step 6: Final answer
x = 461,065.70
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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.