Finding the Fourth Proportional to 772,545.21, 1,158,793.20 and 203,908.80
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Solution
The fourth proportional to 772,545.21, 1,158,793.20 and 203,908.80 is: 305,856.70
Step by Step Solution
- Step 1: Write the proportion equation
772,545.21 : 1,158,793.20 = 203,908.80 : x - Step 2: Convert to fraction form
772,545.21/1,158,793.20 = 203,908.80/x - Step 3: Cross multiply
772,545.21x = 1,158,793.20 × 203,908.80 - Step 4: Simplify right side
772,545.21x = 236,288,130,860.16 - Step 5: Solve for x
x = 236,288,130,860.16/772,545.21 - Step 6: Final answer
x = 305,856.70
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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.