Finding the Fourth Proportional to 643,573.44, 884,981.97 and 558,542.88
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Solution
The fourth proportional to 643,573.44, 884,981.97 and 558,542.88 is: 768,055.90
Step by Step Solution
- Step 1: Write the proportion equation
643,573.44 : 884,981.97 = 558,542.88 : x - Step 2: Convert to fraction form
643,573.44/884,981.97 = 558,542.88/x - Step 3: Cross multiply
643,573.44x = 884,981.97 × 558,542.88 - Step 4: Simplify right side
643,573.44x = 494,300,378,271.87 - Step 5: Solve for x
x = 494,300,378,271.87/643,573.44 - Step 6: Final answer
x = 768,055.90
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1.5x scale
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.