Finding the Fourth Proportional to 1,168,128.96, 1,752,207.36 and 458,491.20
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Solution
The fourth proportional to 1,168,128.96, 1,752,207.36 and 458,491.20 is: 687,742.26
Step by Step Solution
- Step 1: Write the proportion equation
1,168,128.96 : 1,752,207.36 = 458,491.20 : x - Step 2: Convert to fraction form
1,168,128.96/1,752,207.36 = 458,491.20/x - Step 3: Cross multiply
1,168,128.96x = 1,752,207.36 × 458,491.20 - Step 4: Simplify right side
1,168,128.96x = 803,371,655,135.23 - Step 5: Solve for x
x = 803,371,655,135.23/1,168,128.96 - Step 6: Final answer
x = 687,742.26
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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.