Finding the Fourth Proportional to 1,587,119.70, 2,190,573.90 and 1,043,305.71
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Solution
The fourth proportional to 1,587,119.70, 2,190,573.90 and 1,043,305.71 is: 1,439,991.11
Step by Step Solution
- Step 1: Write the proportion equation
1,587,119.70 : 2,190,573.90 = 1,043,305.71 : x - Step 2: Convert to fraction form
1,587,119.70/2,190,573.90 = 1,043,305.71/x - Step 3: Cross multiply
1,587,119.70x = 2,190,573.90 × 1,043,305.71 - Step 4: Simplify right side
1,587,119.70x = 2,285,438,258,046.97 - Step 5: Solve for x
x = 2,285,438,258,046.97/1,587,119.70 - Step 6: Final answer
x = 1,439,991.11
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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.