Finding the Fourth Proportional to 687,193.29, 1,025,210.16 and 649,992.42
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Solution
The fourth proportional to 687,193.29, 1,025,210.16 and 649,992.42 is: 969,710.91
Step by Step Solution
- Step 1: Write the proportion equation
687,193.29 : 1,025,210.16 = 649,992.42 : x - Step 2: Convert to fraction form
687,193.29/1,025,210.16 = 649,992.42/x - Step 3: Cross multiply
687,193.29x = 1,025,210.16 × 649,992.42 - Step 4: Simplify right side
687,193.29x = 666,378,832,906.99 - Step 5: Solve for x
x = 666,378,832,906.99/687,193.29 - Step 6: Final answer
x = 969,710.91
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.