Finding the Fourth Proportional to 1,187,063.98, 1,637,195.23 and 1,043,519.66
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Solution
The fourth proportional to 1,187,063.98, 1,637,195.23 and 1,043,519.66 is: 1,439,219.32
Step by Step Solution
- Step 1: Write the proportion equation
1,187,063.98 : 1,637,195.23 = 1,043,519.66 : x - Step 2: Convert to fraction form
1,187,063.98/1,637,195.23 = 1,043,519.66/x - Step 3: Cross multiply
1,187,063.98x = 1,637,195.23 × 1,043,519.66 - Step 4: Simplify right side
1,187,063.98x = 1,708,445,409,763.22 - Step 5: Solve for x
x = 1,708,445,409,763.22/1,187,063.98 - Step 6: Final answer
x = 1,439,219.32
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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.