Finding the Fourth Proportional to 1,587,636.36, 2,190,953.34 and 862,489.53
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Solution
The fourth proportional to 1,587,636.36, 2,190,953.34 and 862,489.53 is: 1,190,243.79
Step by Step Solution
- Step 1: Write the proportion equation
1,587,636.36 : 2,190,953.34 = 862,489.53 : x - Step 2: Convert to fraction form
1,587,636.36/2,190,953.34 = 862,489.53/x - Step 3: Cross multiply
1,587,636.36x = 2,190,953.34 × 862,489.53 - Step 4: Simplify right side
1,587,636.36x = 1,889,674,316,468.53 - Step 5: Solve for x
x = 1,889,674,316,468.53/1,587,636.36 - Step 6: Final answer
x = 1,190,243.79
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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.