Finding the Fourth Proportional to 506,290.42, 698,656.21 and 288,550.07
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Solution
The fourth proportional to 506,290.42, 698,656.21 and 288,550.07 is: 398,185.09
Step by Step Solution
- Step 1: Write the proportion equation
506,290.42 : 698,656.21 = 288,550.07 : x - Step 2: Convert to fraction form
506,290.42/698,656.21 = 288,550.07/x - Step 3: Cross multiply
506,290.42x = 698,656.21 × 288,550.07 - Step 4: Simplify right side
506,290.42x = 201,597,298,301.44 - Step 5: Solve for x
x = 201,597,298,301.44/506,290.42 - Step 6: Final answer
x = 398,185.09
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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.