Finding the Fourth Proportional to 1,781,668.16, 2,455,489.28 and 1,297,466.40
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Solution
The fourth proportional to 1,781,668.16, 2,455,489.28 and 1,297,466.40 is: 1,788,163.98
Step by Step Solution
- Step 1: Write the proportion equation
1,781,668.16 : 2,455,489.28 = 1,297,466.40 : x - Step 2: Convert to fraction form
1,781,668.16/2,455,489.28 = 1,297,466.40/x - Step 3: Cross multiply
1,781,668.16x = 2,455,489.28 × 1,297,466.40 - Step 4: Simplify right side
1,781,668.16x = 3,185,914,836,360.19 - Step 5: Solve for x
x = 3,185,914,836,360.19/1,781,668.16 - Step 6: Final answer
x = 1,788,163.98
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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.