Finding the Fourth Proportional to 1,071,378.18, 1,607,015.34 and 397,590.84
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Solution
The fourth proportional to 1,071,378.18, 1,607,015.34 and 397,590.84 is: 596,366.99
Step by Step Solution
- Step 1: Write the proportion equation
1,071,378.18 : 1,607,015.34 = 397,590.84 : x - Step 2: Convert to fraction form
1,071,378.18/1,607,015.34 = 397,590.84/x - Step 3: Cross multiply
1,071,378.18x = 1,607,015.34 × 397,590.84 - Step 4: Simplify right side
1,071,378.18x = 638,934,578,923.49 - Step 5: Solve for x
x = 638,934,578,923.49/1,071,378.18 - Step 6: Final answer
x = 596,366.99
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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.