Finding the Fourth Proportional to 1,170,871.68, 1,615,679.28 and 661,475.68
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Solution
The fourth proportional to 1,170,871.68, 1,615,679.28 and 661,475.68 is: 912,766.59
Step by Step Solution
- Step 1: Write the proportion equation
1,170,871.68 : 1,615,679.28 = 661,475.68 : x - Step 2: Convert to fraction form
1,170,871.68/1,615,679.28 = 661,475.68/x - Step 3: Cross multiply
1,170,871.68x = 1,615,679.28 × 661,475.68 - Step 4: Simplify right side
1,170,871.68x = 1,068,732,550,399.91 - Step 5: Solve for x
x = 1,068,732,550,399.91/1,170,871.68 - Step 6: Final answer
x = 912,766.59
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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.