Finding the Fourth Proportional to 810,195.84, 1,118,070.36 and 470,685.96
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Solution
The fourth proportional to 810,195.84, 1,118,070.36 and 470,685.96 is: 649,546.68
Step by Step Solution
- Step 1: Write the proportion equation
810,195.84 : 1,118,070.36 = 470,685.96 : x - Step 2: Convert to fraction form
810,195.84/1,118,070.36 = 470,685.96/x - Step 3: Cross multiply
810,195.84x = 1,118,070.36 × 470,685.96 - Step 4: Simplify right side
810,195.84x = 526,260,020,744.15 - Step 5: Solve for x
x = 526,260,020,744.15/810,195.84 - Step 6: Final answer
x = 649,546.68
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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.