Finding the Fourth Proportional to 980,235.84, 1,352,566.80 and 612,669.63
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Solution
The fourth proportional to 980,235.84, 1,352,566.80 and 612,669.63 is: 845,384.92
Step by Step Solution
- Step 1: Write the proportion equation
980,235.84 : 1,352,566.80 = 612,669.63 : x - Step 2: Convert to fraction form
980,235.84/1,352,566.80 = 612,669.63/x - Step 3: Cross multiply
980,235.84x = 1,352,566.80 × 612,669.63 - Step 4: Simplify right side
980,235.84x = 828,676,600,906.28 - Step 5: Solve for x
x = 828,676,600,906.28/980,235.84 - Step 6: Final answer
x = 845,384.92
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1.5x scale
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.