Finding the Fourth Proportional to 612,800.84, 918,906.01 and 213,432.77
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Solution
The fourth proportional to 612,800.84, 918,906.01 and 213,432.77 is: 320,046.32
Step by Step Solution
- Step 1: Write the proportion equation
612,800.84 : 918,906.01 = 213,432.77 : x - Step 2: Convert to fraction form
612,800.84/918,906.01 = 213,432.77/x - Step 3: Cross multiply
612,800.84x = 918,906.01 × 213,432.77 - Step 4: Simplify right side
612,800.84x = 196,124,655,083.95 - Step 5: Solve for x
x = 196,124,655,083.95/612,800.84 - Step 6: Final answer
x = 320,046.32
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1.5x scale
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.