Finding the Fourth Proportional to 816,320.06, 1,126,492.94 and 448,794.53
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Solution
The fourth proportional to 816,320.06, 1,126,492.94 and 448,794.53 is: 619,320.65
Step by Step Solution
- Step 1: Write the proportion equation
816,320.06 : 1,126,492.94 = 448,794.53 : x - Step 2: Convert to fraction form
816,320.06/1,126,492.94 = 448,794.53/x - Step 3: Cross multiply
816,320.06x = 1,126,492.94 × 448,794.53 - Step 4: Simplify right side
816,320.06x = 505,563,870,402.74 - Step 5: Solve for x
x = 505,563,870,402.74/816,320.06 - Step 6: Final answer
x = 619,320.65
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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.