Finding the Fourth Proportional to 1,677,534.40, 2,514,203.16 and 1,321,140.88
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Solution
The fourth proportional to 1,677,534.40, 2,514,203.16 and 1,321,140.88 is: 1,980,058.70
Step by Step Solution
- Step 1: Write the proportion equation
1,677,534.40 : 2,514,203.16 = 1,321,140.88 : x - Step 2: Convert to fraction form
1,677,534.40/2,514,203.16 = 1,321,140.88/x - Step 3: Cross multiply
1,677,534.40x = 2,514,203.16 × 1,321,140.88 - Step 4: Simplify right side
1,677,534.40x = 3,321,616,575,301.18 - Step 5: Solve for x
x = 3,321,616,575,301.18/1,677,534.40 - Step 6: Final answer
x = 1,980,058.70
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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.