Finding the Fourth Proportional to 828,170.52, 1,142,868.42 and 465,595.98
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Solution
The fourth proportional to 828,170.52, 1,142,868.42 and 465,595.98 is: 642,518.57
Step by Step Solution
- Step 1: Write the proportion equation
828,170.52 : 1,142,868.42 = 465,595.98 : x - Step 2: Convert to fraction form
828,170.52/1,142,868.42 = 465,595.98/x - Step 3: Cross multiply
828,170.52x = 1,142,868.42 × 465,595.98 - Step 4: Simplify right side
828,170.52x = 532,114,942,020.95 - Step 5: Solve for x
x = 532,114,942,020.95/828,170.52 - Step 6: Final answer
x = 642,518.57
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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.