Finding the Fourth Proportional to 1,533,012.84, 2,115,623.10 and 853,949.64
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Solution
The fourth proportional to 1,533,012.84, 2,115,623.10 and 853,949.64 is: 1,178,486.92
Step by Step Solution
- Step 1: Write the proportion equation
1,533,012.84 : 2,115,623.10 = 853,949.64 : x - Step 2: Convert to fraction form
1,533,012.84/2,115,623.10 = 853,949.64/x - Step 3: Cross multiply
1,533,012.84x = 2,115,623.10 × 853,949.64 - Step 4: Simplify right side
1,533,012.84x = 1,806,635,584,620.68 - Step 5: Solve for x
x = 1,806,635,584,620.68/1,533,012.84 - Step 6: Final answer
x = 1,178,486.92
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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.