Finding the Fourth Proportional to 1,348,619.29, 1,861,131.21 and 805,070.68
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Solution
The fourth proportional to 1,348,619.29, 1,861,131.21 and 805,070.68 is: 1,111,019.38
Step by Step Solution
- Step 1: Write the proportion equation
1,348,619.29 : 1,861,131.21 = 805,070.68 : x - Step 2: Convert to fraction form
1,348,619.29/1,861,131.21 = 805,070.68/x - Step 3: Cross multiply
1,348,619.29x = 1,861,131.21 × 805,070.68 - Step 4: Simplify right side
1,348,619.29x = 1,498,342,161,132.08 - Step 5: Solve for x
x = 1,498,342,161,132.08/1,348,619.29 - Step 6: Final answer
x = 1,111,019.38
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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.