Finding the Fourth Proportional to 572,965.30, 858,820.20 and 288,201.70
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Solution
The fourth proportional to 572,965.30, 858,820.20 and 288,201.70 is: 431,986.79
Step by Step Solution
- Step 1: Write the proportion equation
572,965.30 : 858,820.20 = 288,201.70 : x - Step 2: Convert to fraction form
572,965.30/858,820.20 = 288,201.70/x - Step 3: Cross multiply
572,965.30x = 858,820.20 × 288,201.70 - Step 4: Simplify right side
572,965.30x = 247,513,441,634.34 - Step 5: Solve for x
x = 247,513,441,634.34/572,965.30 - Step 6: Final answer
x = 431,986.79
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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.