Finding the Fourth Proportional to 755,043.55, 1,041,959.49 and 415,511.80
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Solution
The fourth proportional to 755,043.55, 1,041,959.49 and 415,511.80 is: 573,405.95
Step by Step Solution
- Step 1: Write the proportion equation
755,043.55 : 1,041,959.49 = 415,511.80 : x - Step 2: Convert to fraction form
755,043.55/1,041,959.49 = 415,511.80/x - Step 3: Cross multiply
755,043.55x = 1,041,959.49 × 415,511.80 - Step 4: Simplify right side
755,043.55x = 432,946,463,216.98 - Step 5: Solve for x
x = 432,946,463,216.98/755,043.55 - Step 6: Final answer
x = 573,405.95
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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.