Finding the Fourth Proportional to 1,348,617.36, 1,861,128.50 and 805,068.62
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Solution
The fourth proportional to 1,348,617.36, 1,861,128.50 and 805,068.62 is: 1,111,016.50
Step by Step Solution
- Step 1: Write the proportion equation
1,348,617.36 : 1,861,128.50 = 805,068.62 : x - Step 2: Convert to fraction form
1,348,617.36/1,861,128.50 = 805,068.62/x - Step 3: Cross multiply
1,348,617.36x = 1,861,128.50 × 805,068.62 - Step 4: Simplify right side
1,348,617.36x = 1,498,336,139,806.68 - Step 5: Solve for x
x = 1,498,336,139,806.68/1,348,617.36 - Step 6: Final answer
x = 1,111,016.50
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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.