Finding the Fourth Proportional to 1,587,441.64, 2,190,708.97 and 862,289.14
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Solution
The fourth proportional to 1,587,441.64, 2,190,708.97 and 862,289.14 is: 1,189,980.47
Step by Step Solution
- Step 1: Write the proportion equation
1,587,441.64 : 2,190,708.97 = 862,289.14 : x - Step 2: Convert to fraction form
1,587,441.64/2,190,708.97 = 862,289.14/x - Step 3: Cross multiply
1,587,441.64x = 2,190,708.97 × 862,289.14 - Step 4: Simplify right side
1,587,441.64x = 1,889,024,553,731.59 - Step 5: Solve for x
x = 1,889,024,553,731.59/1,587,441.64 - Step 6: Final answer
x = 1,189,980.47
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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.