Finding the Fourth Proportional to 1,587,263.49, 2,190,439.53 and 862,125.39
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Solution
The fourth proportional to 1,587,263.49, 2,190,439.53 and 862,125.39 is: 1,189,741.68
Step by Step Solution
- Step 1: Write the proportion equation
1,587,263.49 : 2,190,439.53 = 862,125.39 : x - Step 2: Convert to fraction form
1,587,263.49/2,190,439.53 = 862,125.39/x - Step 3: Cross multiply
1,587,263.49x = 2,190,439.53 × 862,125.39 - Step 4: Simplify right side
1,587,263.49x = 1,888,433,534,072.67 - Step 5: Solve for x
x = 1,888,433,534,072.67/1,587,263.49 - Step 6: Final answer
x = 1,189,741.68
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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.