Finding the Fourth Proportional to 1,587,636.10, 2,190,929.06 and 862,478.02
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Solution
The fourth proportional to 1,587,636.10, 2,190,929.06 and 862,478.02 is: 1,190,214.91
Step by Step Solution
- Step 1: Write the proportion equation
1,587,636.10 : 2,190,929.06 = 862,478.02 : x - Step 2: Convert to fraction form
1,587,636.10/2,190,929.06 = 862,478.02/x - Step 3: Cross multiply
1,587,636.10x = 2,190,929.06 × 862,478.02 - Step 4: Simplify right side
1,587,636.10x = 1,889,628,157,629.26 - Step 5: Solve for x
x = 1,889,628,157,629.26/1,587,636.10 - Step 6: Final answer
x = 1,190,214.91
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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.