Finding the Fourth Proportional to 1,117,491.14, 1,676,292.06 and 318,890.36
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Solution
The fourth proportional to 1,117,491.14, 1,676,292.06 and 318,890.36 is: 478,351.33
Step by Step Solution
- Step 1: Write the proportion equation
1,117,491.14 : 1,676,292.06 = 318,890.36 : x - Step 2: Convert to fraction form
1,117,491.14/1,676,292.06 = 318,890.36/x - Step 3: Cross multiply
1,117,491.14x = 1,676,292.06 × 318,890.36 - Step 4: Simplify right side
1,117,491.14x = 534,553,378,478.54 - Step 5: Solve for x
x = 534,553,378,478.54/1,117,491.14 - Step 6: Final answer
x = 478,351.33
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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.