Finding the Fourth Proportional to 1,107,875.40, 1,530,129.16 and 744,668.68
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Solution
The fourth proportional to 1,107,875.40, 1,530,129.16 and 744,668.68 is: 1,028,490.44
Step by Step Solution
- Step 1: Write the proportion equation
1,107,875.40 : 1,530,129.16 = 744,668.68 : x - Step 2: Convert to fraction form
1,107,875.40/1,530,129.16 = 744,668.68/x - Step 3: Cross multiply
1,107,875.40x = 1,530,129.16 × 744,668.68 - Step 4: Simplify right side
1,107,875.40x = 1,139,439,261,806.71 - Step 5: Solve for x
x = 1,139,439,261,806.71/1,107,875.40 - Step 6: Final answer
x = 1,028,490.44
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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.