Finding the Fourth Proportional to 393,613.80, 590,420.70 and 314,881.80
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Solution
The fourth proportional to 393,613.80, 590,420.70 and 314,881.80 is: 472,322.70
Step by Step Solution
- Step 1: Write the proportion equation
393,613.80 : 590,420.70 = 314,881.80 : x - Step 2: Convert to fraction form
393,613.80/590,420.70 = 314,881.80/x - Step 3: Cross multiply
393,613.80x = 590,420.70 × 314,881.80 - Step 4: Simplify right side
393,613.80x = 185,912,732,773.26 - Step 5: Solve for x
x = 185,912,732,773.26/393,613.80 - Step 6: Final answer
x = 472,322.70
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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.