Finding the Fourth Proportional to 928,891.80, 1,393,337.70 and 555,643.80
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Solution
The fourth proportional to 928,891.80, 1,393,337.70 and 555,643.80 is: 833,465.70
Step by Step Solution
- Step 1: Write the proportion equation
928,891.80 : 1,393,337.70 = 555,643.80 : x - Step 2: Convert to fraction form
928,891.80/1,393,337.70 = 555,643.80/x - Step 3: Cross multiply
928,891.80x = 1,393,337.70 × 555,643.80 - Step 4: Simplify right side
928,891.80x = 774,199,454,311.26 - Step 5: Solve for x
x = 774,199,454,311.26/928,891.80 - Step 6: Final answer
x = 833,465.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.