Finding the Fourth Proportional to 1,616,139.64, 2,230,231.70 and 890,970.60
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Solution
The fourth proportional to 1,616,139.64, 2,230,231.70 and 890,970.60 is: 1,229,516.82
Step by Step Solution
- Step 1: Write the proportion equation
1,616,139.64 : 2,230,231.70 = 890,970.60 : x - Step 2: Convert to fraction form
1,616,139.64/2,230,231.70 = 890,970.60/x - Step 3: Cross multiply
1,616,139.64x = 2,230,231.70 × 890,970.60 - Step 4: Simplify right side
1,616,139.64x = 1,987,070,875,888.02 - Step 5: Solve for x
x = 1,987,070,875,888.02/1,616,139.64 - Step 6: Final answer
x = 1,229,516.82
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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.