Finding the Fourth Proportional to 1,489,461.21, 2,055,878.42 and 877,968.72
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Solution
The fourth proportional to 1,489,461.21, 2,055,878.42 and 877,968.72 is: 1,211,845.55
Step by Step Solution
- Step 1: Write the proportion equation
1,489,461.21 : 2,055,878.42 = 877,968.72 : x - Step 2: Convert to fraction form
1,489,461.21/2,055,878.42 = 877,968.72/x - Step 3: Cross multiply
1,489,461.21x = 2,055,878.42 × 877,968.72 - Step 4: Simplify right side
1,489,461.21x = 1,804,996,940,493.18 - Step 5: Solve for x
x = 1,804,996,940,493.18/1,489,461.21 - Step 6: Final answer
x = 1,211,845.55
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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.