Finding the Fourth Proportional to 1,926,384.40, 2,660,197.44 and 1,442,108.80
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Solution
The fourth proportional to 1,926,384.40, 2,660,197.44 and 1,442,108.80 is: 1,991,447.88
Step by Step Solution
- Step 1: Write the proportion equation
1,926,384.40 : 2,660,197.44 = 1,442,108.80 : x - Step 2: Convert to fraction form
1,926,384.40/2,660,197.44 = 1,442,108.80/x - Step 3: Cross multiply
1,926,384.40x = 2,660,197.44 × 1,442,108.80 - Step 4: Simplify right side
1,926,384.40x = 3,836,294,137,961.47 - Step 5: Solve for x
x = 3,836,294,137,961.47/1,926,384.40 - Step 6: Final answer
x = 1,991,447.88
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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.