Finding the Fourth Proportional to 1,692,117.48, 2,538,840.84 and 744,824.12
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Solution
The fourth proportional to 1,692,117.48, 2,538,840.84 and 744,824.12 is: 1,117,528.73
Step by Step Solution
- Step 1: Write the proportion equation
1,692,117.48 : 2,538,840.84 = 744,824.12 : x - Step 2: Convert to fraction form
1,692,117.48/2,538,840.84 = 744,824.12/x - Step 3: Cross multiply
1,692,117.48x = 2,538,840.84 × 744,824.12 - Step 4: Simplify right side
1,692,117.48x = 1,890,989,894,473.06 - Step 5: Solve for x
x = 1,890,989,894,473.06/1,692,117.48 - Step 6: Final answer
x = 1,117,528.73
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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.