Finding the Fourth Proportional to 1,236,485.76, 1,864,566.48 and 1,219,623.84
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Solution
The fourth proportional to 1,236,485.76, 1,864,566.48 and 1,219,623.84 is: 1,839,139.44
Step by Step Solution
- Step 1: Write the proportion equation
1,236,485.76 : 1,864,566.48 = 1,219,623.84 : x - Step 2: Convert to fraction form
1,236,485.76/1,864,566.48 = 1,219,623.84/x - Step 3: Cross multiply
1,236,485.76x = 1,864,566.48 × 1,219,623.84 - Step 4: Simplify right side
1,236,485.76x = 2,274,069,730,272.88 - Step 5: Solve for x
x = 2,274,069,730,272.88/1,236,485.76 - Step 6: Final answer
x = 1,839,139.44
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.