Finding the Fourth Proportional to 1,170,740.44, 1,615,618.20 and 661,442.68
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Solution
The fourth proportional to 1,170,740.44, 1,615,618.20 and 661,442.68 is: 912,788.86
Step by Step Solution
- Step 1: Write the proportion equation
1,170,740.44 : 1,615,618.20 = 661,442.68 : x - Step 2: Convert to fraction form
1,170,740.44/1,615,618.20 = 661,442.68/x - Step 3: Cross multiply
1,170,740.44x = 1,615,618.20 × 661,442.68 - Step 4: Simplify right side
1,170,740.44x = 1,068,638,832,064.78 - Step 5: Solve for x
x = 1,068,638,832,064.78/1,170,740.44 - Step 6: Final answer
x = 912,788.86
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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.