Finding the Fourth Proportional to 857,545.20, 1,183,485.12 and 475,695
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Solution
The fourth proportional to 857,545.20, 1,183,485.12 and 475,695 is: 656,499.45
Step by Step Solution
- Step 1: Write the proportion equation
857,545.20 : 1,183,485.12 = 475,695 : x - Step 2: Convert to fraction form
857,545.20/1,183,485.12 = 475,695/x - Step 3: Cross multiply
857,545.20x = 1,183,485.12 × 475,695 - Step 4: Simplify right side
857,545.20x = 562,977,954,158.40 - Step 5: Solve for x
x = 562,977,954,158.40/857,545.20 - Step 6: Final answer
x = 656,499.45
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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.