Finding the Fourth Proportional to 1,587,633.36, 2,190,949.20 and 862,486.53
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Solution
The fourth proportional to 1,587,633.36, 2,190,949.20 and 862,486.53 is: 1,190,239.65
Step by Step Solution
- Step 1: Write the proportion equation
1,587,633.36 : 2,190,949.20 = 862,486.53 : x - Step 2: Convert to fraction form
1,587,633.36/2,190,949.20 = 862,486.53/x - Step 3: Cross multiply
1,587,633.36x = 2,190,949.20 × 862,486.53 - Step 4: Simplify right side
1,587,633.36x = 1,889,664,172,914.28 - Step 5: Solve for x
x = 1,889,664,172,914.28/1,587,633.36 - Step 6: Final answer
x = 1,190,239.65
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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.