Finding the Fourth Proportional to 1,692,946.64, 2,538,457.08 and 1,308,559.28
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Solution
The fourth proportional to 1,692,946.64, 2,538,457.08 and 1,308,559.28 is: 1,962,094.66
Step by Step Solution
- Step 1: Write the proportion equation
1,692,946.64 : 2,538,457.08 = 1,308,559.28 : x - Step 2: Convert to fraction form
1,692,946.64/2,538,457.08 = 1,308,559.28/x - Step 3: Cross multiply
1,692,946.64x = 2,538,457.08 × 1,308,559.28 - Step 4: Simplify right side
1,692,946.64x = 3,321,721,568,915.70 - Step 5: Solve for x
x = 3,321,721,568,915.70/1,692,946.64 - Step 6: Final answer
x = 1,962,094.66
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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.