Finding the Fourth Proportional to 1,587,403.64, 2,190,656.58 and 862,251.14
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Solution
The fourth proportional to 1,587,403.64, 2,190,656.58 and 862,251.14 is: 1,189,928.06
Step by Step Solution
- Step 1: Write the proportion equation
1,587,403.64 : 2,190,656.58 = 862,251.14 : x - Step 2: Convert to fraction form
1,587,403.64/2,190,656.58 = 862,251.14/x - Step 3: Cross multiply
1,587,403.64x = 2,190,656.58 × 862,251.14 - Step 4: Simplify right side
1,587,403.64x = 1,888,896,133,453.50 - Step 5: Solve for x
x = 1,888,896,133,453.50/1,587,403.64 - Step 6: Final answer
x = 1,189,928.06
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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.