Finding the Fourth Proportional to 1,170,414, 1,615,302.81 and 661,149.18
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Solution
The fourth proportional to 1,170,414, 1,615,302.81 and 661,149.18 is: 912,460.15
Step by Step Solution
- Step 1: Write the proportion equation
1,170,414 : 1,615,302.81 = 661,149.18 : x - Step 2: Convert to fraction form
1,170,414/1,615,302.81 = 661,149.18/x - Step 3: Cross multiply
1,170,414x = 1,615,302.81 × 661,149.18 - Step 4: Simplify right side
1,170,414x = 1,067,956,128,283.20 - Step 5: Solve for x
x = 1,067,956,128,283.20/1,170,414 - Step 6: Final answer
x = 912,460.15
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.